Glass-bottom Boat Reef Tour

52 Reviews | Big Island of Hawaii, USA

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1 hour (Approx.)
Mobile Ticket

Keeping you safe during COVID-19
What you can expect during your visit
COVID-19 vaccination required for guides
Guides required to regularly wash hands
Hand sanitizer available to travelers and staff
Regularly sanitized high-traffic areas
A note about this tour
Face masks are now optional for passengers and crew


Discover the beauty of Kona's underwater world aboard Marian, a 36-foot (10-meter), custom-designed glass-bottom boat. Your expert naturalist guide provides insight to the world of corals and colorful tropical fish. View Kona's coastline, mountains, historical sights, and maybe even spot frolicking dolphins or seasonal whales. This 50-minute tour is a must for all ages, from kids to avid divers and snorkelers eager to learn more about Hawaii's unique marine life. Bring along your camera and wear comfortable clothing and footwear. Sit back and relax while the boat skims over the reef, putting you within inches of the underwater world. Marian was specially designed and built for just this experience.  


  • Informative, friendly and professional guide
  • Excellent value for money
  • Family friendly
  • See the underwater world without getting wet



What's Included

What To Bring

Additional Info


Average 4.46 out of 5 stars based on 52 verified reviews from Cool Destinations and TripAdvisor

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Pretty cool
Brenda W, Jul 2022 Verified
Wish it could be longer and go out further, maybe less time over ship wreck but it was great. Amy was very informative.
Glass-bottom Boat Reef Tour
nathandR842UR, Jan 2022 Verified
The tour was excellent - much more accessible than snorkeling and more educational due to great explanation from our guide, Eden.
Glass-bottom Boat Reef Tour
OnAir118514, Jan 2022 Verified
Eden is the perfect guide for the glass bottom boat. She explained everything we saw and included interesting facts about the beautiful fish and reef. The very young children liked her and one hugged her. Sean did a great job of positioning us over the reefs.
Glass-bottom Boat Reef Tour
Journey780424, Jan 2022 Verified
Perfect for what we were looking for - our kids are still very young and can't swim/snorkel, and we wanted them to experience and learn about the underwater sea life. Was a gentle ride over the clear reefs, got to see lots of fish and other sea creatures. The guide was very knowledgeable and patiently answered all our kids questions.
Very considerate crew.
Tom C, Dec 2021 Verified
Eden was an excellent guide. From the minute we left the dock she was full of facts and stories about the fish, the history, and observations about the area. We even were graced with a dolphin appearance. I felt a bit queasy and she had ginger chews available which helped immensely. If you have some time please go.
Glass-bottom Boat Reef Tour
Loretta_K, Nov 2021 Verified
The tour guide was wonderful. She is very knowledgeable about the history of Kona and the fish species. She is very personable and added to a delightful glass bottom boat tour experience
Glass-bottom Boat Reef Tour
Matthew_C, Nov 2021 Verified
Saw Parrot fish, puffer fish, tang, butterflyfish, a sea turtle, and more. Also learned some details about the fish and the island.
Glass-bottom Boat Reef Tour
Denise G, Nov 2021 Verified
We had a great experience on this excursion. The staff was attentive, knowledgeable and friendly. We saw a lot of different breeds of fish and beautiful coral reefs.
Glass-bottom Boat Reef Tour
ldlovetogo, Nov 2021 Verified
Eden was a fabulous guide. She was well-informed, funny, and very friendly. Was concerned about the potential for motion sickness based on some reviews, and was prepared, but none of the 4 of us had any issue. You just have to look up occasionally.
Glass-bottom Boat Reef Tour
Gay F, Oct 2021 Verified
Very educational and well presented. We had an excellent docent that really knew what we were seeing in our reef adventure. Told many interesting tidbits about the sea life we were seeing.

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Product code: C-36904P1

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