Scuba Dive Maui’s Top Sites

Explore Molokini Crater, Lanai Cathedrals and More!

World-Class Dive Adventures

Maui’s enchanting marine realm promises unforgettable encounters with Hawaii’s most spectacular sea creatures. Explore legendary dive sites teeming with life, from dramatic lava formations to serene underwater caverns.

Molokini Crater

Our most popular trip, this 2-tank dive charter usually visits Molokini Crater first and is followed by a dive along the shoreline where we are likely to see turtles!

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Cathedrals At Lanai

Several times a month, we make the trip over to Lanai. Possible dive sites include the Cathedrals sites, Shark Fin, Lighthouse, and more!

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Small Groups. Big Ocean Adventures. Local Expertise.

“What a well organized top notch dive company everyone and everything was on point. I’ve been diving hundreds of times and it’s probably one of the nicest boats I’ve been on.” - Danae V. via Google ★★★★★

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Why Choose Us

Welcome to the Maui Diamond, where our commitment is to treat all of our guests like the gems you are! We dive Molokini Crater regularly, as well as many other sites around the island and we even offer trips to the Cathedrals at Lanai.

Our beautiful 46-foot custom-built dive boat offers plenty of space and a smooth ride.

If you haven’t dived with us yet, we’ll look forward to spoiling you. And for our returning divers, well, you’re family by now, so let’s go diving!

Our experienced crew is dedicated to providing you with a safe, enjoyable, and unforgettable diving adventure. Whether you’re a seasoned diver or just getting started, we cater to all skill levels and ensure that every dive is a unique experience. With our top-of-the-line equipment and knowledgeable guides, you can relax and focus on the beauty of Maui’s underwater world.

After an exhilarating dive, unwind on deck with stunning views of the island’s coastline and crystal-clear waters. We pride ourselves on creating a welcoming and friendly atmosphere where divers from all over can share stories and make new friends. Come aboard the Maui Diamond and create memories that will last a lifetime!

Choose your boat dives

Uncover Maui’s most spectacular and unforgettable boat diving experiences, where every descent reveals a world of wonder. From the iconic Molokini Crater’s thriving reefs to the dramatic lava formations of Cathedrals off Lānaʻi, each dive site offers something extraordinary. Glide alongside sea turtles, eagle rays, and vibrant tropical fish in crystal-clear visibility, or explore thrilling underwater caves and arches teeming with marine life.

Molokini Backwall (and 2nd site) Book Now

2 Tank Wild Card Book Now

Mala Pier + Pali Dive Adventure Book Now

Helldiver and Triple Anchors Book Now

Carthaginian Book Now

2 Tank Afternoon Charter Book Now

2 Tank Dusk and Night Dive Book Now

Molokini Double Backwall Book Now

Sunset Whale Watch Book Now

Chenyang Zhou

21:48 23 Jun 25

Absolutely amazing experience. The staff are knowledgeable and patient with passion and love for the ocean and their job! Dived with Joe, super cool guy. And we saw a whaleshark on the way back!

Nan Cayler

03:32 23 Jun 25

Great crew, good operation for a large boat! Equipment fit well, worked well. Thank you!

Larry Connor

22:17 22 Jun 25

The crew was experienced and very attentive. Our dive master did a great job of not only pointing out unique sea life, but telling us what it was on his pad. I enjoyed the crater, but the second dive (at Marty's reef) was even better.

Bradley de Geus

06:41 20 Jun 25

Fantastic Boat with an amazing crew who loves what they’re doing and knows all the popular dives sites as well as some hidden gems. We picked a wildcard day and it was amazing. Captain Ben was super friendly and very thorough with the safety briefing. The dive team was well staffed and very organized. We had divemaster Don who was super chill, laid back, always smiling and very thorough on the dive briefings and provided a very clear picture of each dive site and the different things we might encounter at each dive site. If you’re looking for a unbeatable diving experience this is it!!

Francesca Capizzi

17:52 17 Jun 25

Highly recommend! The crew is a 10 and the divings are amazing, equipment and boat in perfect conditions. Moreover if you have a good air consumption the instructors will extend your dive and you are not forced to come back with your buddy / group.
Thank you so much !

Kevin Greer

12:38 17 Jun 25

Maui Diamond Sea Sports was awesome to dive and snorkel with. We chose an outfit whom would allow me to dive and my wife to snorkel. They were 100% professional and took us to the best dive spots in Maui, especially when weather turned and got in the way (Pali coast sites). We saw so much with them (Turtles, eels, octopus, so many fish, starfish, etc.) It was an absolutely epic adventure and would not have been so without Captain Ben whom took us up and beyond and David wrote out fish names underwater on his white board to educate. Very cool experience and I so HIGHLY recommend - I'm going to dive with them again!!!

Jeremiah Farinella

20:51 14 Jun 25

Great dive experience with Michelle, Dave, and Crew from Maui Diamond. Equipment was in great shape and the boat had plenty of space for the group size. Used aluminum tanks to 3k psi, digital dive computer, normal BC and backup regs. We dove on the 13 June 2025 with the 1st dive down to around 80 to 90ft at Molokini Crater and the second dive at Pu'pu Olai cinder cone around 40-50ft. During the dive notable sealife included baby reef sharks, barcuda, eagle ray, lion fish, sponge crab, plenty of native Hawaiian fish and great coral. Thanks again for the great dive experience!

Kaitlyn Caudill

23:28 10 Jun 25

Took their Lanai Cathedral dive excursion and it was a wonderful experience and would absolutely go diving with them again!

Bernardo Freitas

16:46 10 Jun 25

Amazing experience!

Jason Harris

17:12 09 Jun 25

Fantastic dive guide team and boat ride. Friendly, personable, and professional. Great dive spots and safety briefings. I did two excursions (two different days). First was the Molokini Crater two tank dive. Second day was the Lani Cathedrals two tank dive. Molokini Crater visibility was great. Dive guide pointed out a frog fish and octopus, in addition to some small reef sharks swimming by. Cathedrals was a new experience for me, diving through the lava formations and seeing the rare black coral. Very cool! The second dive for both excursions was a drift dive along the shore rock walls, where we saw eels, turtles, and lots of variety of fish.