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# Extended Horizons | Dive Maui & Lanai

Scuba Diving Maui

## Sitemaps

- [XML Sitemap](https://extendedhorizons.com/sitemap.xml): Contains all public & indexable URLs for this website.

## Posts

- [Blog](https://extendedhorizons.com/blog/) - Explore the Extended Horizons dive blog for Maui and Lanai dive site guides, scuba diving tips, marine life encounters, and news from your favorite dive shop.
- [Lanai Cathedrals from Lahaina: An Interpretive Guide to Maui’s Most Iconic Dive (2026)](https://extendedhorizons.com/2026/05/01/lanai-cathedrals-dive-lahaina/) - Dive the Lanai Cathedrals with interpretive naturalist guides from Lahaina. Biodiesel boat, 4:1 ratio 70 min bottom time. The most meaningful way to dive Lanai.
- [PADI AWARE - Aquatic World Awareness, Responsibility, and Education Specialties in Lahaina: Earn Your Certification in One Day on West Maui’s Reefs (2026)](https://extendedhorizons.com/2026/04/18/padi-conservation-specialty-lahaina-maui/) - Earn a PADI Conservation Specialty in one day in Lahaina. Coral reef, shark, and fish ID certifications through EcoDiving workshops. 5:1 groups. Book today.
- [Boat Dives in Lahaina: Why Extended Horizons’ Naturalist-Led Charters Are Unlike Any Other on Maui](https://extendedhorizons.com/2026/05/01/boat-dives-lahaina/) - Extended Horizons runs naturalist-led boat dive charters from Lahaina to West Maui’s best reef sites. Small groups, a 5:1 guide ratio, and 40+ years of experience set us apart from every other operator on the island
- [Turtle Needs Help!](https://extendedhorizons.com/2020/10/12/turtle-needs-help/) - Have you ever seen a wild animal in need of help? If you have, odds are it left a lasting impression on you. I know that Iʻll never forget the day I helped a green sea turtle. All too often, when hearing of marine animals in crisis, it is the result of some sort of
- [How to Tame Your Mer-Mane](https://extendedhorizons.com/2020/10/05/how-to-tame-your-mer-mane/) - By Annika Doerr and David Leonhardt We all know what happens to our hair after diving right? ...Medusa! Luckily, here at Extended Horizons, we have A LOT of hair and have gathered a few tips over the years to help prevent hair damage associated with salt water diving. Spend more time blowing bubbles and less
- [Common Seabirds of Maui County](https://extendedhorizons.com/2020/09/30/common-seabirds-of-maui-county/) - We know that many of you are stuck at home, dreaming of Maui beaches, Haleakala hikes, and diving the Lanai Cathedrals. What you may not realize about some of your favorite Maui attractions is that they play a role in smaller ecosystems that make up a larger Coastal Ecosystem. Here at Extended Horizons, we LOVE
- [Kahekili Herbivore Fisheries Management Area](https://extendedhorizons.com/2020/09/15/kahekili-herbivore-fisheries-management-area/) - Have you ever walked along Ka‘anapli Boardwalk and noticed signs explaining the Kahekili Herbivore Fisheries Management Area (KHFMA) project? Kahekili (or Airport) Beach is one of our favorite places to go shore diving so we love telling the story of how special this place is! If you've been shore diving there with us before, we've
- [Hawksbill Sea Turtles Part II: Honu‘ea in Hawaii](https://extendedhorizons.com/2020/09/08/hawksbill-turtles-part-ii/) - Click here for Hawksbill Turtles Part I You probably have already heard the Hawaiian name for green sea turtles: honu. But did you know that there is actually a difference between green sea turtles and the hawksbill sea turtles in the Hawaiian language? Honu refers to green sea turtle and honu‘ea, (or simply
- [Hawksbill Turtles Part I: Meet Rocket Girl!](https://extendedhorizons.com/2020/08/31/hawaii-hawksbill-turtles-scuba/) - By Annika Doerr MEET ROCKET GIRL! A Hawaiian hawksbill turtle living on Maui We scuba diving instructors are lucky enough to encounter sea turtles underwater just about every day on Maui. While there are five species of sea turtle known to Hawaii, only two are seen with regularity: the commonly seen green sea turtle,
- [Safe Shore Diving Part 1: Entry and Exit Procedures](https://extendedhorizons.com/2020/08/21/safe-shore-diving-part-1-entry-and-exit-procedures/) - By Chris Doerr and Hannah Elliott Aloooooha ocean-lovers and divers! Did you know that, here on Maui, there are some INCREDIBLE dive sites accessible right from shore? In fact, Maui's coast is where we see Green Sea Turtles most often! If you haven't already, check out our social media pages for images and video
- [Coral Fluorescence: A Neon Sign](https://extendedhorizons.com/2020/08/14/coral-fluorescing/) - By Jessica Glazner In a recent blog post, we discussed what coral bleaching is and how, as divers, we might have a positive impact on coral reefs. If you recall, when ocean temperatures rise above their normal limit corals “bleach,” meaning they expel their symbiotic algae, the zooxanthellae, revealing their white skeleton through the transparent
- [What is Coral Bleaching and How Can Divers Help?](https://extendedhorizons.com/2020/08/01/what-is-coral-bleaching-and-how-can-divers-help/) - By Jessica Glazner As divers, many of you probably already know that the oceans reefs have undergone extensive coral bleaching over the last decade, but do you know what that actually means? Well, What Are Corals Anyway? Corals are animals in the Cnidarian family that are related to jellyfish and hydroids. Specifically, stony corals, which
- [Ocean Conservancy Diving Tips](https://extendedhorizons.com/2020/02/05/ocean-conservancy-diving-tips/) - When you’re out diving among the beautiful marine life and amazing coral reefs, it’s important that you maintain ocean conservation with proper diving techniques. Ocean conservancy is critical for preserving and protecting our oceans and the aquatic life that lives there. While it may be fun for us to go out and experience the ocean
- [Tips for Maui Shore and Boat Dives](https://extendedhorizons.com/2019/11/15/tips-for-maui-shore-and-boat-dives/) - Maui is well known for its amazing dive sites that offer beautiful views of the ocean and the marine life that live there. If you’re a novice diver and aren’t sure what to expect on your first scuba experience, then let us at Extended Horizons guide you in the right direction. Being properly prepared for your
- [Diving in Lanai](https://extendedhorizons.com/2019/10/16/diving-in-lanai/) - Diving in Lanai The island of Lanai lies a few miles off the Maui coast, east of Lahaina. It is the smallest publicly accessible, inhabited island in all of Hawaii. More importantly to divers, Lanai is fringed by a lush and diverse reef ecosystem with many species that don’t live anywhere else. Divers that dip
- [International Coastal Cleanup Day: Getting Involved](https://extendedhorizons.com/2019/09/17/international-coastal-cleanup-day-getting-involved/) - This year’s International Coastal Cleanup Day is on September 21, 2019. On this day, millions of volunteers across nearly 100 different countries, including the United States, will contribute to the efforts to clean and preserve our beautiful coastlines. History International Coastal Cleanup Day began over 30 years ago, in the state of Texas. It began
- [EH Staff receives annual EFR Training](https://extendedhorizons.com/2019/06/19/emergency-first-responder-training/) - Last week our entire staff received its annual Emergency First Responder training, which includes CPR and First Aid. Perhaps this isn't the most fun, exciting, or 'snazzy' entry to start off our DiveBlog... but it seems appropriate that we start with the fundamentals of our philosophy... Safety, Fun, & Education... Safety being first! Are you
- [Earth Day Events](https://extendedhorizons.com/2019/06/19/earth-day-events/) - Earth Day 2011 is right around the corner! ... April 22nd ...This year, Extended Horizons staff will be participating in Earth Day events by participating in a reef and ocean cleanup along the south coast of Maui, on Sunday April 24th. We're hoping to break all former records for removing debris off the reefs (current record
- [REEF Volunteer Surveys!](https://extendedhorizons.com/2019/06/19/reef-volunteer-surveys/) - Today was Day Two with the hardy group of volunteers conducting REEF Volunteer Surveys off the boat on our Lanai 2 tank charter. Group 1 today was our survey group... their mission... identifying and counting fish species! From REEF's website: REEF's mission, to educate and enlist divers in the conservation of marine habitats, is accomplished
- [Celebrating Earth Day](https://extendedhorizons.com/2019/06/19/earth-day-ocean-cleanup/) - Happy Earth Day divers! It's time for an ocean cleanup! Each year, Extended Horizons honors Earth Day with an underwater ocean cleanup effort. This year, we'll be headed out of Kihei along the southern coast of Maui, with our friends from Mike Severns Diving who are graciously hosting this year's event. Our goal is to
- [374 lbs of debris removed from reef!](https://extendedhorizons.com/2019/06/19/ocean-cleanup-diving/) - The results are in! This was by far our most successful ocean cleanup in terms of how much debris was removed from the reef. This year Mike Severns Diving hosted our annual Earth Day Underwater Reef Cleanup Event, and their crew, plus the crew of Extended Horizons and a few select friends removed 374 pounds of
- [The Guide to Diver Fitness](https://extendedhorizons.com/2020/02/14/the-guide-to-diver-fitness/) - It is a common misconception that scuba diving requires minimal physical effort. While diving can be a relaxing activity, you need to be sure that you are fully equipped for the physical aspects of scuba diving. Evaluate Your Physical Fitness Prior to diving, the most important thing to consider is your health. It is recommended
- [Plastic - Types of Plastic and Recommended Substitutions](https://extendedhorizons.com/2020/03/05/plastic-types-of-plastic-and-recommended-substitutions/) - Did you know that every piece of plastic ever made still exists today? Even as it breaks down it never actually biodegrades, but instead turns into smaller pieces known as microplastics. Causing injury and even death to marine life, one of the top 10 items picked up during beach clean-ups worldwide are plastic straws. Learn

## Pages

- [Home](https://extendedhorizons.com/) - Dive Maui and Lanai with Extended Horizons. Small group scuba tours, PADI certification, shore dives, and conservation education from Lahaina. Book online today.
- [Site Map](https://extendedhorizons.com/site-map/) - ABOUT • Our Story • Facilities • Blog • FAQs DIVING • Learn to Dive • For Certified Divers • Boat Dives • Shore Dives • Night Dives • Special Events Education • Learn to Dive • Become A Better Diver • Conservation Courses Conservation • Green Initiatives • Eco-Diving Resources • Directions • Terms
- [Our Story](https://extendedhorizons.com/about/) - Extended Horizons has been diving Maui and Lanai since 1983. Small groups, certified naturalist guides, 5:1 ratios, and a commitment to reef conservation.
- [Eco-Diving](https://extendedhorizons.com/eco-diving/) - ECODIVING Make Each Dive Count For those of you who want to sleep in as well as go for a fun dive with purpose, our Eco Diving option is the perfect choice! Mid-morning start time and your choice of topics to focus on… Eco Diving can be booked as a one or two dive packages.
- [ONLINE Courses](https://extendedhorizons.com/online-courses-2/) - Conservation. Training. Community. Extended Horizons is striving to make conservation and education available even when you’re not here on Maui! Taught by Extended Horizons Instructors, our On Demand ONLINE courses are a way to learn about diving and marine ecology from home! You’ll have access to the course material with your own log-in, and you can
- [Conservation Courses](https://extendedhorizons.com/conservation-courses/) - Conservation. Training. Community. Extended Horizons is proud to be offering multiple conservation course related options, which include our Conservation Course Training Dives, community work-day dives, and our more casual EcoDives. As a PADI 5-Star and Green Star Facility, our Maui scuba diver training & education program offers the following Conservation Course trainings, each with its
- [Become A Better Diver](https://extendedhorizons.com/become-a-better-diver/) - BECOME A BETTER DIVER THE JOURNEY DOESN’T HAVE TO END AT YOUR SCUBA CERTIFICATION; THAT’S JUST THE BEGINNING! Extended Horizons is a PADI Facility, offering a wide range of Maui scuba options to expand your dive skills, hone your knowledge, increase your confidence, and have fun learning new techniques. We are proud to offer standard
- [Night Dives](https://extendedhorizons.com/night-dives/) - Night scuba diving in Maui with Extended Horizons. See octopus, lobsters, eels, and hunting invertebrates. No night dive experience required. Book online.
- [Shore Dives](https://extendedhorizons.com/shore-dives/) - Guided Maui shore dives for certified and mixed groups. Small groups, slow pace, up to 60 minutes per dive. Turtles, octopus, eels, and more. Book online.
- [BOAT DIVES on Lanai and Maui](https://extendedhorizons.com/boat-dives/) - 2-tank boat dives to Lanai Cathedrals and along the Maui coastline. Only 10 divers per trip with a 5:1 guide ratio. Book your Lahaina dive charter online.
- [Learn to Dive](https://extendedhorizons.com/learn-how-to-dive/) - Learn to Dive on Maui. Become a better diver. Experience scuba diving with professionals that care about you having the best experience of your life diving
- [Reservations](https://extendedhorizons.com/reservations/) - Reservations Dive Maui and Lanai Tours, Boat Dives, Shore Dives, Night Dives, Scuba Gear Rental, Nitrox, Classes (prices do not include taxes and fees) Download Extended Horizons Dive Schedule Chart Here Certified Diver Packages Call To Book Learn To Dive Packages Call To Book Conservation Dive Maui Packages Call To Book For Certified Divers AM
- [Certified Divers](https://extendedhorizons.com/for-certified-divers/) - Maui and Lanai Scuba Dive tours with experienced professional instructors. Personal friendly fun. Our 44 years on Maui shows when you dive the reefs with us.
- [FAQs](https://extendedhorizons.com/faqs/) - Frequently Asked Questions TO FIND YOUR QUESTION USE CTRL F – Boat –Where do I check in? Check in is at Mala Ramp just north of Lahaina off of Front Street. Your email confirmation included a map and directions. What time does the boat actually leave? Check in is at 6:00 am and we leave
- [Terms and Policies](https://extendedhorizons.com/terms-and-policies/) - RESERVATION POLICIES: Availability is on a first-come-first-serve basis. Credit card is required to hold your reservation. Payment is not collected until 48 hours before trip. CANCELLATION POLICY: We maintain a strict 48 hour cancellation policy for our standard reservations, while custom reservations may require more advance notice of cancellation. Please refer to your initial confirmation
- [Facilities](https://extendedhorizons.com/facilities/) - From Humble Beginnings Extended Horizons Maui scuba diving started with two sets of dive gear and a jeep. Today, we have a trailered boat and a warehouse with its office space and classroom for Maui shore dives and Maui scuba diving. We are happy to be Maui’s quirky little dive shop that focuses our energy
- [directions](https://extendedhorizons.com/directions/) - Conveniently located in Lahaina, Hawaii. 5 miles away from the Kaanapali resorts. 40 minutes from Kihei/Wailea resorts. * * IMPORTANT * * WE HAVE TWO DIFFERENT CHECK-IN LOCATIONS REFERENCE YOUR RESERVATION EMAIL TO CONFIRM YOUR CHECK-IN LOCATION BOAT DIVES MEET AT THE MALA BOAT RAMP MALA BOAT RAMP ADDRESS Mala Boat Ramp | GPS Coordinates
- [Privacy Policy](https://extendedhorizons.com/privacy-policy/) - Privacy Policy This privacy policy discloses the privacy practices for Extended Horizons | Dive Maui & Lanai. This privacy policy applies solely to information collected by this web site. It will notify you of the following: What personally identifiable information is collected from you through the web site, how it is used and with whom

## Team Members

- [PAULINE](https://extendedhorizons.com/amo-team/pauline/) - Pauline Fiene is a biologist and is especially interested in nudibranchs, two of which have been named for her, Hallaxa paulinae and Hypselodoris paulinae. She has studied Hawaiian marine life for over thirty-five years, discovering many new species of marine animals and publishing a paper on the spawning of Hawaii’s most abundant species of coral,
- [MAREN](https://extendedhorizons.com/amo-team/maren/) - Maren began her dive career in 1999 at UC Santa Cruz, where she went from Open Water Diver through to DiveMaster, while earning a Bachelors degree in Psychology. She decided Maui would be the ideal place to follow her dreams and became a PADI Instructor in 2004. She started with Extended Horizons in 2005, and
- [MELANIE](https://extendedhorizons.com/amo-team/melanie/) - Melanie was born and raised right here on Maui, and has been answering the phones for Extended Horizons since 2007! She commutes each day from Makawao, that’s how much she believes in and loves Extended Horizons! She manages a lot of our social media posts, and enjoys expanding her knowledge of the marine animals vicariously
- [BAILEY](https://extendedhorizons.com/amo-team/bailey/) - Instructor Bailey is from Dallas, TX and fell in love with the ocean spending every summer day on Galveston Island. She got her degree in Marine Biology and Diving Technology and Methods at Texas A&M. During her first few years of training in cold, dark lakes and muddy Galveston Bay, Bailey was hesitant about diving,
- [MYKA](https://extendedhorizons.com/amo-team/myka/) - Myka grew up in Harrisburg, Pennsylvania, but always dreamed of a life near the ocean. In 2019 they embarked on a backpacking trip to Southeast Asia, and got Open Water certified in Koh Tao, Thailand, knowing instantly that they wanted to make a career of diving. Myka first came to Maui with Americorps NCCC, and
- [GU](https://extendedhorizons.com/amo-team/gu/) - Gu (Goo) was born on a small island in South Brazil and was raised being in the water every day. Gu is a PADI Instructor, and his passion for all the activities related to the ocean is contagious and it’s not uncommon to find him surfing, swimming or even diving on his days off. When
- [GABI](https://extendedhorizons.com/amo-team/gabi/) - Born on a small island in Brasil to a swim instructor mom and a surfer dad, Gabi has always felt a special connection to the water. After moving to Arizona at a young age, the ocean felt more like a dream than reality but the pool is where she felt most comfortable. While in college
- [RACHEL](https://extendedhorizons.com/amo-team/rachel/) - Rachel grew up in Pennsylvania where the two mouths of the Susquehanna Rivers meet. She has loved being in and on the water since she was born, fascinated by the underwater world. In college, she was torn between her love of the ocean and its creatures, and her love of human interaction. She ended up
- [VICTORIA](https://extendedhorizons.com/amo-team/victoria/) - Victoria began her diving in 1986 in Nashville, TN, and has been with Extended Horizons since 1998, when she came out on a Lana‘i charter as an Open Water Diver and decided not to go home! She is Director of Operations, our lead Captain with a US Coast Guard 100 ton license, PADI Instructor, SDI
- [ERIK](https://extendedhorizons.com/amo-team/erik/) - Erik is the owner operator of Extended Horizons, which he started in 1983 with two sets of dive gear and a lot of youthful energy! He is a US Coast Guard 100 ton Captain, PADI Instructor, SDI Instructor, regulator repair tech, Visual Cylinder Inspector, Certified Interpretive Guide, as well as our trailer repair tech, sometimes

## Categories

- [News](https://extendedhorizons.com/category/news/) - This is a category description to populate the category page. It should be at least 300 words and contain some relevant keywords if desired.
- [Sustainability](https://extendedhorizons.com/category/sustainability/)
- [Maui Dive Shop](https://extendedhorizons.com/category/maui-dive-shop/)
- [Green Initiatives](https://extendedhorizons.com/category/green-initiatives/)
- [Volunteer](https://extendedhorizons.com/category/volunteer/)
- [Conservation](https://extendedhorizons.com/category/conservation/)
- [Coral Reef](https://extendedhorizons.com/category/coral-reef/)
- [Marine Life](https://extendedhorizons.com/category/marine-life/)
- [Informational](https://extendedhorizons.com/category/informational/)

## Tags

- [international coastal cleanup day](https://extendedhorizons.com/tag/international-coastal-cleanup-day/)
- [coastal cleanup](https://extendedhorizons.com/tag/coastal-cleanup/)
- [ocean cleanup](https://extendedhorizons.com/tag/ocean-cleanup/)
- [getting involved](https://extendedhorizons.com/tag/getting-involved/)
- [clean oceans](https://extendedhorizons.com/tag/clean-oceans/)
- [clean beaches](https://extendedhorizons.com/tag/clean-beaches/)
- [extended horizons maui](https://extendedhorizons.com/tag/extended-horizons-maui/)
- [extended horizons](https://extendedhorizons.com/tag/extended-horizons/)
- [maui scuba diving](https://extendedhorizons.com/tag/maui-scuba-diving/)
- [ocean conservancy](https://extendedhorizons.com/tag/ocean-conservancy/)
- [reef volunteer](https://extendedhorizons.com/tag/reef-volunteer/)
- [earth day](https://extendedhorizons.com/tag/earth-day/)
- [earth day events](https://extendedhorizons.com/tag/earth-day-events/)
- [training](https://extendedhorizons.com/tag/training/)
- [diving in lanai](https://extendedhorizons.com/tag/diving-in-lanai/)
- [diving in lahaina](https://extendedhorizons.com/tag/diving-in-lahaina/)
- [maui scuba](https://extendedhorizons.com/tag/maui-scuba/)
- [maui dive shop](https://extendedhorizons.com/tag/maui-dive-shop/)
- [scuba diving maui](https://extendedhorizons.com/tag/scuba-diving-maui/)
- [maui shore dives](https://extendedhorizons.com/tag/maui-shore-dives/)
- [maui boat dives](https://extendedhorizons.com/tag/maui-boat-dives/)
- [diving tips](https://extendedhorizons.com/tag/diving-tips/)
- [dive equipment](https://extendedhorizons.com/tag/dive-equipment/)
- [night diving](https://extendedhorizons.com/tag/night-diving/)
- [guide to diver fitness](https://extendedhorizons.com/tag/guide-to-diver-fitness/)
- [diver fitness](https://extendedhorizons.com/tag/diver-fitness/)
- [dive shop in maui](https://extendedhorizons.com/tag/dive-shop-in-maui/)
- [dive maui](https://extendedhorizons.com/tag/dive-maui/)
- [nationally credentialed dive shop](https://extendedhorizons.com/tag/nationally-credentialed-dive-shop/)
- [highly rated dive shop](https://extendedhorizons.com/tag/highly-rated-dive-shop/)
- [scuba diving](https://extendedhorizons.com/tag/scuba-diving/)
- [maui diving](https://extendedhorizons.com/tag/maui-diving/)
- [sustainability](https://extendedhorizons.com/tag/sustainability/)
- [types of plastic](https://extendedhorizons.com/tag/types-of-plastic/)
- [microplastics](https://extendedhorizons.com/tag/microplastics/)
- [eco friendly alternatives](https://extendedhorizons.com/tag/eco-friendly-alternatives/)
- [stainless steel](https://extendedhorizons.com/tag/stainless-steel/)
- [glass](https://extendedhorizons.com/tag/glass/)
- [reusable grocery bags](https://extendedhorizons.com/tag/reusable-grocery-bags/)
- [#stopsucking](https://extendedhorizons.com/tag/stopsucking/)
- [green initiatives](https://extendedhorizons.com/tag/green-initiatives/)
- [for a strawless ocean](https://extendedhorizons.com/tag/for-a-strawless-ocean/)
- [retail merchants association](https://extendedhorizons.com/tag/retail-merchants-association/)
- [hawaii food association of the the hawaii restaurant association](https://extendedhorizons.com/tag/hawaii-food-association-of-the-the-hawaii-restaurant-association/)
- [american chemistry council](https://extendedhorizons.com/tag/american-chemistry-council/)
- [straw-free charter](https://extendedhorizons.com/tag/straw-free-charter/)
- [green sea turtle](https://extendedhorizons.com/tag/green-sea-turtle/)
- [sea turtle](https://extendedhorizons.com/tag/sea-turtle/)
- [hawksbill sea turtle](https://extendedhorizons.com/tag/hawksbill-sea-turtle/)
- [hawaii](https://extendedhorizons.com/tag/hawaii/)
- [maui](https://extendedhorizons.com/tag/maui/)
- [scuba](https://extendedhorizons.com/tag/scuba/)
- [scuba certification](https://extendedhorizons.com/tag/scuba-certification/)
- [maui hawaii](https://extendedhorizons.com/tag/maui-hawaii/)
- [conservation](https://extendedhorizons.com/tag/conservation/)
- [marine biology](https://extendedhorizons.com/tag/marine-biology/)
- [seabirds](https://extendedhorizons.com/tag/seabirds/)
- [dive lanai](https://extendedhorizons.com/tag/dive-lanai/)
- [diving](https://extendedhorizons.com/tag/diving/)
- [hair care](https://extendedhorizons.com/tag/hair-care/)
- [scuba hair](https://extendedhorizons.com/tag/scuba-hair/)
- [hawaii diving](https://extendedhorizons.com/tag/hawaii-diving/)

## Team Categories

- [EH Team](https://extendedhorizons.com/amo-team-category/eh-team/)