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Oahu RECOMMENDATIONS See all

Oahu Underwater Adventures

By Viator, July 2013

5 20 Reviews | Add your review

From the pulsing shores of Waikiki Beach to the hopping markets of Chinatown, the island of Oahu buzzes with activity during every season of the year. While all of the adventure can definitely be exciting, it can also get a little overwhelming being surrounded by so many people.

The good news, however, is that even on this island of a million residents there’s still a place where you can hear yourself think. A place where car horns are replaced by bubbles, and the sight of tour buses clogging the freeway is replaced by fish gently nibbling on the reef. This place, of course, is underwater, and Oahu has a number of undersea adventures which are available to all sorts of visitors.

On the east shore of the island, kayak from Kailua Bay before slipping into the water with a snorkel and mask. Hawaiian green sea turtles and colorful reef fish both inhabit the hidden coves, and you’ll also have the chance to paddle the length of some of the state’s most beautiful beaches.

For those who would prefer to explore a little deeper, scuba diving is available from the shipwrecks of Honolulu to the lagoons of the leeward coast. For those who aren’t yet certified, there are introductory classes at Ko Olina where you can learn the basics of breathing underwater. Or, for certified divers, Oahu offers advanced dives which range from hidden sea caves to sunken barges to a Corsair airplane which sank during World War II.

If you don’t like the idea of breathing through a tube—but still want to explore underwater—there are also tours where you can strap on a helmet and take a ride on an underwater scooter. Like a curious type of undersea aquanaut, you can effortlessly watch from the protected confines of your own personal air bubble as Hawaiian green sea turtles go zooming by.

Finally, if you’re looking for an adventure that’s as exciting as it is extreme, one of Oahu’s best underwater adventures is swimming with sharks off the island’s North Shore. Motoring out from Haleiwa harbor, visitors are protected by a metal cage from the Gray, Galapagos, and various other shark species which circle the boat for an inquisitive look. While definitely not for the faint of heart, swimming with sharks off the North Shore of Oahu is an experience you’ll remember for years after your trip.

Tours & Tickets

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Oahu Shark Dive

5 star rating: Highly Recommended 156 Reviews

Book the Oahu Shark Dive to enjoy a thrilling encounter with sharks! Cruise from Oahu's beautiful North Shore to your viewing spot, where you'll observe the ...  Read more

Location: Haleiwa, Oahu
Duration: 2 hours (approx.)

From USD $73.30

Oahu Submarine Scooter Adventure

5 star rating: Highly Recommended 61 Reviews

Enjoy an exciting underwater adventure on Oahu! On this submarine scooter tour, cruise along Maunalua Bay past Diamond Head Crater and then dive under the ...  Read more

Location: Oahu, Hawaii
Duration: 2 hours (approx.)

From USD $103.66

Swim with the Dolphins at Sea Life Park in Oahu

4.5 star rating: Recommended 11 Reviews

Don’t miss a chance to swim with some of Hawaii’s most beautiful creatures and everyone’s favorite ocean mammal – dolphins! Experience a thrilling belly ride, ...  Read more

Location: Oahu, Hawaii
Duration: Varies

From USD $125.64

Oahu Atlantis Submarine Adventure

4.5 star rating: Recommended 81 Reviews

Dive below the surface of Hawaii's blue waters on an Atlantis Submarine Oahu tour! You'll have a unique chance to observe marine life up close without getting ...  Read more

Location: Oahu, Hawaii
Duration: 2 hours (approx.)

From USD $117.40

Oahu Atlantis Submarine Adventure and Sunset Dinner Cruise

5 star rating: Highly Recommended 7 Reviews

Save money when you combine an Atlantis Submarine Oahu Adventure and Sunset Dinner Cruise to explore Hawaii's clear blue waters above and below the surface. ...  Read more

Location: Oahu, Hawaii
Duration: 3 hours 30 minutes (approx.)

From USD $214.75

Oahu Super Saver: Helicopter Tour plus Dolphin Snorkel Adventure

Combine a helicopter tour, dolphin encounter and snorkel adventure over two consecutive days with this Oahu Super Saver from Ko Olina, just west of Waikiki. ...  Read more

Location: Oahu, Hawaii
Duration: 2 days (approx.)

From USD $274.25

Oahu Shore Excursion: Atlantis Submarine Adventure

5 star rating: Highly Recommended 7 Reviews

After cruising on the water, dive deep below in a submarine! Explore Hawaii's blue waters on an Atlantis Submarine tour and have a unique chance to observe ...  Read more

Location: Oahu, Hawaii
Duration: 1.5 hours

From USD $117.40

Oahu Certified Scuba Diving Tour

3.5 star rating: Worth doing 2 Reviews

If you’re a certified scuba diver, explore what lies beneath Oahu’s turquoise waters on this diving adventure! Enjoy the scenic ride on the dive boat before ...  Read more

Location: Oahu, Hawaii
Duration: 4 hours 30 minutes (approx.)

From USD $149.69

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