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    What to Expect
    Dive into the magical underwater world of Hawaii without ever leaving the boat during this ride aboard a glass-bottomed vessel. This special ship offers a unique window into the wondrous mysteries and fascinating creatures that inhabit the Big Island’s shores and reefs.

    Check in for your morning boat ride at Kailua Pier, climbing down into the viewing area of your totally custom-built 36-foot (10-meter) boat. Grab a seat on a cushioned couch alongside one of the boat’s four viewing windows and receive an introduction and overview of your trip from your on-board naturalist.

    Cruise out into the mellow waters just off the Big Island as you admire some of this amazing coastline’s unique coral reefs. Your unique shallow-bottom boat can get right up to the edge of these amazing underwater wildlife areas, offering you the perfect view. As you gaze in amazement at the colorful fish and corals below, listen as your naturalist narrator shares a few insights into reefs and the ecological forces that shape them. Learn where some of Hawaii’s beautiful white sand comes from and get a peek “behind the curtain” of fish mating rituals.

    Continue your ride by proceeding into deeper waters, allowing you views of an amazing underwater pinnacle and a chance to watch as the bottom quickly drops off into the deep ocean. As you ride, you might even have the chance to spot spinner dolphins and (depending on the season) humpback whales. And if you get tired for some reason of the views from below, turn your gaze toward the horizon, where you’ll be able to spot historic shoreline sights like Hulihee Palace, Mokuaikaua Church and Kamakahonu (where King Kamehameha I made his home in his final years), plus much more.

    Finish your magical experience along Hawaii’s beautiful coast by traveling back to Kailua Pier.
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    Important Information
    Departure Point
    Kailua Pier, Kaahumanu Pl, Kailua-Kona, HI 96740, USA
    Return Details
    Returns to original departure point
    • Live commentary on board
    • Local guide
    • Food and drinks, but cold water is available
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    Additional Info
    • Confirmation will be received at time of booking
    • Child rate applies only when sharing with one paying adult
    • Children must be accompanied by an adult
    • A maximum of 24 people per booking
    • This tour requires reconfirmation with the local supplier
    • Departs at 11am Monday and Friday or 12:30pm Wednesday
    • Departs from Kailua Pier, directly across from Courtyard King Kamehameha's Kona Beach Hotel, 75-5660 Palani Rd., Kailua-Kona, HI
    • Tour departs midway down pier on left side. Look for blue and yellow flags on boat mast.
    • This experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund
    Cancellation Policy
    For a full refund, cancel at least 24 hours in advance of the start date of the experience.
    Traveller rating
    • 34
    • 8
    • 7
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    • English
    Popular mentions
    This was an excursion booked through Royal Caribbean. Our guide was awesome, she had been a diver for many years and gave us great descriptions of the fish we could see and the area we were in. We were able to see a huge school of fish and many other smaller groups of fish.
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    I have a mixed review for this tour. Our guide, Amy, was fantastic. She was an absolute wealth of information regarding the sea life. She gave us a ton of information and answered all of our questions. The crew was great and served water and ginger ale at the beginning and
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    My husband and I took my 80 yearly old parents on this tour!! My mom had a walker but with her cane could walk on board the boat. Seats were very comfortable- this boat is beautifully made and maintained. The reef is quite close and the water is so clear you can see all the way
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    Response from Amy J, Marine Naturalist and Office Staff. at Glass-bottom Boat Reef Tour
    Responded 4 weeks ago
    Thank you for the wonderful review! It is so nice to hear that you and your parents enjoyed our tour. Our guides really do enjoy sharing facts about the creatures below with our guests and it is so rewarding to know how much you enjoyed them. Aloha!
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    Interesting and educational short trip around the coral off the Kona shore. Trip was the right length and any longer would not have resulted in seeing more. If you have motion sickness, take something for it. My wife took dramamine and still struggled with the constant looking
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    Response from Amy J, Narrator, and office staff at Glass-bottom Boat Reef Tour
    Responded 14 Sep 2019
    We are so happy you enjoyed the trip. Sorry to hear that your wife struggled with motion sickness. We always try to remind folks that, as with any boat trip, it is always a good idea to look at the horizon and coast line periodically. Thank you for taking the time to write a review.
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    Enjoyed this trip. Saw a beautiful array of fish and everything was well explained by the crew. Excellent experience.
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    Response from Jean J, Owner at Glass-bottom Boat Reef Tour
    Responded 18 Aug 2019
    Aloha and mahalo for the nice review. We love to hear from our guests. So glad you enjoyed the experience!
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