Glassbottom Boat Reef Tour - Hawaii Volcanoes National Park

Per Person
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Tour Information

Key Details

  • Mobile Voucher Accepted
  • Free Cancellation
  • Duration: 50 Mins
  • Language:
  • Departure Time :
    11am Monday and Friday, 12:30pm Wednesday
  • Departure Details :
    Kailua Pier, right in the village of Kailua-Kona, Hawaii Island (Big Island)


Discover the beauty of Kona's underwater world aboard Marian, a 36 foot custom designed glassbottom boat.  Your expert naturalist will share  the beauty of the sea with insight to the world of corals and colorful tropical fish. Lookout and 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 and experience levels. Avid divers and snorkelers are amazed to learn more about Hawaii's unique marine life and have the opportunity to share their experiences with friends and family members. Bring along your camera, wear comfortable clothing and footwear.  Sit  back and relax while the boat skims over the reef, able to get within inches. 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

Know More about this tour

Your tour begins at Kailua Pier, right in the center of Kailua-Kona village across from Courtyard King Kamehameha's Kona Beach Hotel. Departures are at 11am Mondays and Fridays, 12:30pm Wednesdays. Boarding Marian, a 36-foot (10-meter), custom-designed glass-bottom boat is easy: Just step up a couple of steps to the boarding ramp and down a couple of steps to the main hull and viewing area. All guests sits around four large viewing boxes with comfortable cushioned seats where no one can block your view. Your expert naturalist guide goes over the safety features on board, and then off you sail.

The reefs in Hawaii are fringing reefs, meaning they are right next to the coastline. Marian was specially designed to get over the very shallow waters and right up to the shoreline, putting you within inches of the reefs. Your naturalist tells you all about the processes taking place on the reef: how the beautiful white sands are formed, the strange mating practices of fish, and how coral reefs resemble cities at war. The crew have been diving these waters for 30 years, so there's no end to the stories they've collected. Cruise over a pinnacle inches from the glass, a great photo opportunity. As boat goes off the shoreline, you'll see how quickly the ocean bottom plunges deeper and deeper. You might get a chance to view frolicking spinner dolphins or seasonal humpback whales. Feel free to move about the boat, look out from the bow, or relax in your seat and look through the elliptical windows. As you crusie along, youll enjoy vistas of the rugged shoreline and slopes of Kona. Historical sights include Hulihee Palace; Mokuaikaua Church, the oldest Christian church in Hawaii; Kamakahonu, where King Kamehameha I made his home in his final years; and AhuenaHeiau, his personal shrine. You might want to walk around the village later to explore these sights. Your tour ends as you cruise back to Kailua Pier.

This tour is a must for anyone who wants to see and learn about Hawaiis reefs, and you dont even have to get wet. There are no age or size restrictions, so it's great for families. Remember to wear comfortable shoes and clothing and bring a camera. Sunscreen and a hat are always a good idea, too.


  • Live commentary on board
  • Local guide


  • Food and drinks, but cold water is available

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.