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Submarine, glass-bottom boat or scooter?

Three trips promise Oahu's underwater world without scuba training. One dives to 100 feet, one stays on the surface, and one puts you in the water. Here is how to choose.

Split view of a glass-bottom boat on the surface and a reef with a turtle below
Illustration: above or below the surface is the real choice.

Booking choice: The Atlantis Submarine, from $151 per person. Check dates Compare the options below

The names are confusing: the "submarine scooter" is not a submarine, and the glass-bottom boat never dives. Here is what each actually does, and who each suits.

The quick answer

Choose the Atlantis Submarine to go 100 feet down past wrecks, dry. Choose the glass-bottom boat for an hour on the surface at a third of the price. Choose the submarine scooter to be in the water with turtles and reef fish, even as a non-swimmer, from age 10.

How do they compare side by side?

The submarine is the deepest and driest, the boat the cheapest and easiest, the scooter the most hands-on.

Atlantis SubmarineGlass-bottom boatSubmarine scooter
From (adult)$151$46$188
How deepAbout 100 ftSurfaceShallow reef
Wet or dryDryDryWet
Length2 hours (45 min under)1 hour2 hours
Leaves fromHilton Hawaiian VillageKewalo BasinKoko Marina, Hawaii Kai
Ages36 in and tallerYoung children welcome10 and over
Rating4.4 (1,347)4.6 (2,371)4.8 (2,426)

Leaning towards depth? Check the submarine's morning slots.

Check dates for the Atlantis Submarine

What does the submarine give you that the boat cannot?

Depth: the submarine sits among the wrecks at about 100 feet, with fish at eye level outside your window.

From the glass-bottom boat you look down through panels at shallower water. You see more sunlight and colour near the surface, but nothing of the deep wrecks.

A shipwreck seen through a submarine viewport
Only the submarine reaches the wrecks.

What is the glass-bottom boat like?

A one-hour cruise from Kewalo Basin along Waikiki toward Diamond Head, looking down at the reef through panels in the hull.

The crew spots turtles and dolphins, and whales in winter. There is a shaded deck and a restroom on board, you can bring your own drinks, and parking at the harbour is extra.

Passengers on a glass-bottom boat looking over the side at turquoise water
The glass-bottom boat stays on the surface.
Waikiki Glass-Bottom Boat Cruise

Want the ocean on a budget? The glass-bottom boat is an hour on the water for a third of the submarine price.

★ 4.6 2,371 reviews · 1 hour · from $46

Explore the glass-bottom boat

What is a submarine scooter?

A one-person underwater scooter with an air dome over your head: you breathe normally and steer along the reef a few metres down.

It leaves from Koko Marina in Hawaii Kai, east of Diamond Head, with a catamaran ride out into Maunalua Bay, snacks and gear included. Riders must be 10 or older; you do not need to swim.

A row of yellow underwater scooters with clear air domes
The scooters, ready for the next group.

Which is best for non-swimmers?

All three work: the submarine and the boat keep you dry, and the scooter's air dome means you never have to swim.

If getting wet is the worry, choose the submarine or the boat. If the worry is only swimming, the scooter gives the most memorable close-up.

Which is best for young children?

The glass-bottom boat, which welcomes young children; the submarine needs kids at least 36 inches tall, and the scooter is 10 and over.

See the Atlantis Submarine with kids for the height and ladder rules.

Which is best value?

The glass-bottom boat for the price, the submarine for the one-of-a-kind experience, the scooter for the most time close to marine life.

Remember the travel time too: the submarine and the boat leave from Waikiki's edge, while Koko Marina is about a 30-minute drive east.

What about snorkelling or a first scuba dive?

If you can swim, the Turtle Canyon snorkel and the beginner scuba dive get you closer to the fish for less money.

The Turtle Canyon snorkel ($99) offers a free second trip if you see no turtles, and the beginner scuba dive ($85) includes a video of your first breaths underwater.

Happy to swim? Snorkel with green turtles at Turtle Canyon.

Check dates for the Turtle Canyon snorkel

Frequently asked questions

Is the submarine scooter a real submarine?

No. It is a one-person scooter with an air dome over your head, ridden a few metres below the surface.

Which is cheaper, the submarine or the glass-bottom boat?

The glass-bottom boat, from $46 per adult, against $151 for the submarine.

Can you see turtles from a glass-bottom boat?

Often, yes: the crews regularly spot green turtles and dolphins, but sightings are not guaranteed.

Ready to book

Choose your dive

Free cancellation on every option, up to 24 hours before (3 days for the submarine scooter). Prices are from-prices in USD and move with the season.

Atlantis Submarine Adventure, Waikiki

Atlantis Submarine Adventure, Waikiki

★ 4.4 1,347 reviews · 2 hours

  • Shuttle boat from the Hilton Hawaiian Village pier and back
  • About 45 minutes underwater aboard the 64-passenger Atlantis XIV
  • Live English narration; recorded audio in Spanish, Japanese, Korean and Chinese
From$151per personCheck dates
Waikiki Glass-Bottom Boat Cruise

Waikiki Glass-Bottom Boat Cruise

★ 4.6 2,371 reviews · 1 hour

  • 60-minute cruise with captain and crew
  • Glass viewing panels in the hull
  • Bottled water, restroom on board and complimentary photos
From$46per personCheck dates
Submarine Scooter Adventure, Maunalua Bay

Submarine Scooter Adventure, Maunalua Bay

★ 4.8 2,426 reviews · 2 hours

  • Catamaran ride out into Maunalua Bay
  • Guided underwater scooter ride with all equipment
  • Wetsuit top and snorkel gear
From$188per personCheck dates

Plan your date before you go

About 100 feet down past two shipwrecks, with a window seat, live narration and free cancellation up to 24 hours before.

Check dates for the Atlantis Submarine