Available languages
2 hours
Mobile ticket
Dive into an unforgettable underwater adventure on Oahu’s beautiful Maunalua Bay. Cruise past the iconic Diamond Head Crater aboard a comfortable power catamaran before descending beneath the surface on your own self-propelled electric submarine scooter. Glide effortlessly through clear blue waters as colorful tropical fish, Hawaiian green sea turtles, and other marine life surround you in their natural habitat.
Your expert guide will accompany you every step of the way, making this one of Oahu’s most unique and beginner-friendly ocean experiences, no scuba or snorkeling experience required. With small-group tours limited to 30 people, you’ll enjoy a safe, personalized, and eco-friendly adventure that showcases the best of Hawaii’s underwater world.
Public transportation options are available nearby
Not recommended for pregnant travelers
Not recommended for travelers with poor cardiovascular health
Suitable for all physical fitness levels
Minimum age is 10 years old and minimum height is 4 feet (1.2 meters) tall
Please wear a swimsuit. Please bring a towel and sunscreen
Minimum numbers apply. There is a possibility of cancellation after confirmation if there are not enough passengers to meet requirements. In the event of this occurring, you will be offered an alternative or full refund.
Maximum weight is 350 lbs. Maximum height is 6'8". Waiver is required prior to adventure and participant must have no previous medical conditions; minors must have waiver signed by parent or legal guardian.
CHECK-IN TIME IS 30 MINUTES BEFORE DEPARTURE. MUST BRING PHOTO ID FOR CHECK-IN. The boat leaves PROMPTLY at departure time.
* Minors must be accompanied by a paying adult.
If you cancel at least 3 full day(s) before the scheduled departure time, you will receive a full refund.<br>If you cancel within 3 day(s) of the scheduled departure, you will receive a 0% refund.
Please arrive 30 minutes before departure and bring a valid photo ID for check-in. Begin your adventure at 7192 Kalanianaole St, Ste. E111, where you’ll board a 50-foot (12-meter) power catamaran and set out across the stunning waters of Maunalua Bay. As you cruise, take in views of Diamond Head Crater, the Koolau Mountain Range, and Koko Crater. Upon reaching your dive location with crystal-clear water, your guide will provide a safety briefing and demonstrate how to operate your self-propelled electric submarine scooter. This eco-friendly scooter experience offers a fun and effortless way to explore Hawaii’s underwater world up close. Follow your guide beneath the surface and glide among colorful tropical fish, coral reefs, and graceful green sea turtles. After your 20-minute underwater adventure, you’ll have time to swim, snorkel, and relax on the boat’s shaded deck. Enjoy complimentary snacks and beverages as your guide shares stories about the island’s natural and cultural history. Your two-hour tour concludes with the opportunity to purchase professional photos or video footage of your dive, an unforgettable memento of your Oahu experience.
Submarine Scooter Adventure
Non-Alcoholic Beverages
All necessary equipment
Snacks
Wetsuit top and snorkel gear
Hotel pickup and drop-off
2,295 reviews
Total reviews and rating from Viator & Tripadvisor
Saijal K,Mar 12, 2026
- Review from Viator
Overall, this was a cool and unique experience in Oahu. The crew was friendly, helpful, and made everything feel easy and safe. I did expect to see more marine life than we saw, but we did get to see some sea turtles so would definitely recommend if you want to do something different while visiting Hawaii. We also went on a day when the weather was very windy so the ocean was choppy, be prepared for sea sickness.
Dillon P,Mar 11, 2026
- Review from Viator
The water was kinda rough the day we went out and the girls were a little nervous on getting in, but once everyone was in the water and lowered down it was great. Very neat experience none of us will forget.

Christine B,Mar 9, 2026
- Review from Viator
As an experienced snorkeler, I prefer regular snorkeling, as you have more control, but I would highly recommend this for non-swimmers. The submarine scooter goes anbout 10 ft down annd goes very slowly while tethered to the boat. Even for experienced snorkelers, you still get time to just snorkel. The crew were fantastic! There were lots of fish and several green sea turtles getting groomed by the fish. I had a great time!
Glen G,Mar 9, 2026
- Review from Viator
What a amazing way to see the sea turtles and tropical fish. You can snorkel while waiting for other groups to go and there are all kinds of fish to gaze at.
sierra k,Mar 9, 2026
- Review from Viator
Me and my husband had such a great time, got to see lots of fish and a turtle. It was such a once in a life time experience. All of the guides were so friendly and helpful. I was a little nervous going into it but they were so patient and helped everyone feel comfortable. They provided snacks and water. And while we waited for out time to go into the scooters they provided snorkeling gear to kill the time! A great time overall.
PriyankaReddy D,Mar 5, 2026
- Review from Viator
Soooo good! We enjoyed it a lot. The instructors were friendly and supportive—kudos to them! It was lovely to see the fishes. I’m a non-swimmer, and I still felt comfortable. Highly recommended!
Judith K,Mar 5, 2026
- Review from Viator
My husband and I had a fantastic time SNUBA diving. The best way I can describe it is that it’s like riding a motorcycle underwater with a large helmet that allows you to breathe and go deeper into the sea. It’s truly an experience you don’t want to miss. The crew was very friendly, helpful, and made everyone feel comfortable. There were a few people on our boat who were not strong swimmers, and the crew took extra care to make sure they felt safe and confident. After their SNUBA experience, they were already saying they wanted to do it again! My husband and I had a wonderful time and took some great pictures with our underwater camera. We also purchased the photo and video package, and we were very glad we did. This is a must-do experience — you won’t regret it!
Marianna A,Mar 5, 2026
- Review from Viator
What an incredible afternoon adventure. The staff that is included is so kind and so patient and so skilled. Once you’re underwater it’s like no other experience. Hats off to an amazing staff who patiently helped everyone have a magical time.
Alena M,Mar 5, 2026
- Review from Viator
This is a great experience. Unique and exhilarating. For those who get motion sickness, take medicine beforehand.
breannaa659,Mar 4, 2026
- Review from Tripadvisor
All the staff are extremely nice and reassuring. We had a great time and would recommend this to anyone and do this activity again! Save some money by booking bundles of activities through the Island WaterSports Hawaii Center, as these activities can get pricey. The boat ride and experience were about 2 hours long; the time flew by. There were a number of other groups on the boat as well, but not crowded at all. Snacks and drinks were provided, and the boat was clean and dry.
Operated by Island Water Sports Hawaii, Inc.