Welcome to H2O Adventures Hawaii

Situated on Oahu’s pristine and picturesque north shore, we offer three of the most exciting boat tours in Hawaii. Come join us to see sharks rise up from the depths to greet you, watch green sea turtles explore their habitat or witness mother natures fabulous Humpback whales frolic in Hawaii’s warm waters. You will be thrilled and amazed.


Shark Tours

We’ll travel offshore three to four miles to our cage moored in the beautiful cobalt blue water. The visibility is so good (often 150 feet or more) that you can actually see the sharks come up from the deep. Our cage can hold up to 8 people comfortably which allows small families to experience their shark dive together.

Whale Tours

It is believed Humpback whales come to Hawaii because of the warm waters, good water visibility, varied ocean depths and lack of natural predators. They usually start to arrive as early as December and a few may linger as late as May, before heading back to Alaska to feed for the summer months.  Hawaii is the only state in the U.S. where humpback whales mate, calve and nurse their young. They are one of the most dynamic and interesting whales to watch, often exhibiting Arial behaviors such as breaching, tail slapping, and spy hopping.

Come join us to catch these majestic Humpback whales off Oahu’s north shore coast.

Turtle Tours

Complete your Hawaiian vacation with an authentic trip to the North Shore of Oahu to see some of the most majestic creatures of the islands up close and personal.

20% discount when you book online!


About us

We are situated in the town of Haleiwa on the north shore of Oahu. The waters offshore are teaming with adventure and life. We have a fleet of four custom built motor vessels to provide the utmost comfort and safety on our adventures.


Tour info

No fancy equipment or training needed, simply a mask and snorkel which is provided. You don’t even need to know how to swim because you just hold onto the bars as you float in the safety of the spacious aluminum shark diving cage.


Hotel Pickup

Are you staying in Waikiki, at the Kahala Hotel, or coming off a cruise ship and need round trip transportation? Let us do all the driving for you and book online or call us at 808-228-5900 any day between 6 am and 6 pm.