Overview
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.
Additional Info
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.
What To Expect
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.
Options
Submarine Scooter
What‘s Included
Submarine Scooter Adventure
Non-Alcoholic Beverages
All necessary equipment
Snacks
Wetsuit top and snorkel gear
Hotel pickup and drop-off
Cancellation Policy
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.
Reviews
2,350 reviews
Total reviews and rating from Viator & Tripadvisor
Take the plunge
Patricia K,Jun 13, 2026
- Review from Viator
5.00It seems like it would be terrifying, but it is really safe. The divers take great care of you. An amazing experience.
Oahu sub scooter
Jose M,Jun 13, 2026
- Review from Viator
5.00Great experience, no swimming experience needed. Great time! Great crew. Crew was patient and awesome!
Excellent!
Kris M,Jun 12, 2026
- Review from Viator
5.00We had so much fun! The crew were incredible & we loved every minute! There’s so much to see and explore! We highly recommend taking this adventure!
Such an amazing trip. It...
Ann C,Jun 11, 2026
- Review from Viator
5.00Such an amazing trip. It was my sons #1 activity we did over a two week vacation, and we had a lot planned. Staff was amazing, experience was amazing. Dont double think it, book immediately!
Great crew and experience
Trail51561679803,Jun 7, 2026
- Review from Tripadvisor
5.00This excursion was fantastic. I was so scared and was going to just get back on the boat. Boone was kind, patient and let me take my time. I am so glad he did . I had a great time and so did my husband. The entire crew was fantastic and very helpful. We highly recommend doing this. It is a super experience that you shouldn't pass up.
I gifted this activity to...
Jason Y,Jun 2, 2026
- Review from Viator
1.00I gifted this activity to my wife, my mother-in-law, and two of their friends. I was embarrassed to learn they were only on the submarine scooters for 20 minutes, especially since I had told them it was a 2-hour experience based on the listing. I later realized the actual scooter ride is only 20 minutes, and the remaining time is spent snorkeling. The itinerary is misleading and needs to clearly reflect this time breakdown.
The submarine scooter...
Jason Y,Jun 2, 2026
- Review from Viator
1.00The submarine scooter ride was a novel experience, but it lasted about 30 minutes instead of 2 hours. You don't have full control, only the ability to turn around. It is controlled by the safety instructors.
The Ultimate Ocean Adventure!
dorotat881,May 31, 2026
- Review from Tripadvisor
5.00I have done my fair share of snorkeling in the past, but the underwater scooter experience blew everything else out of the water! I was a little hesitant at first, but the guides were absolute professionals. They took the time to explain everything clearly and made sure everyone in our small group was comfortable and confident before we even hit the water.Once we descended into the crystal-clear ocean, the magic began. The submarine scooters were incredibly easy to maneuver. It felt completely surreal to glide effortlessly through brightly colored tropical fish. Whenever sea turtles were spotted, our diver was quick to point them out. What I loved most is how this experience bridges the gap for non-swimmers or those who don't have a scuba diving license. You get to experience the depths and wonders of the ocean with zero heavy gear or complicated training.If you are looking for a unique, exhilarating, and deeply relaxing way to experience the underwater world, do not hesitate to book this. It was the highlight of our vacation, and I would do it again in a heartbeat!
Hubby can't swim
marysS1562VN,May 29, 2026
- Review from Tripadvisor
5.00Excellent experience! the captains were great and made sure we saw as many turtles as possible.
great time
G4596WHmarym,May 29, 2026
- Review from Tripadvisor
5.00We had a great experience !! I find it hard to get used to snorkeling with having to just breathe through my mouth . This was completely easier, breathing like normal in a large space. For me personally i couldn’t have enjoyed it more. Ty to the captain and crew !!!
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Operated by Island Water Sports Hawaii, Inc.