Aerial view of people snorkeling in clear blue water near a small boat with a white canopy.

Two people snorkeling in clear ocean water with green snorkel masks on a sunny day.

Who We are

Ocean Adventures in Kona, Hawaii

Originally founded as a dolphin and whale watch company, Dolphin Discoveries has grown into one of the premier ocean tour operators on the Big Island. We specialize in Manta Ray Night Snorkel tours and Captain Cook Snorkel trips out of Keauhou Bay, and we bring that same care and expertise to everything we do on the water. Veteran Owned and Operated. No matter which tour you book, you're in for an experience you won't forget.

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Departing Daily from Keauhou Harbor

Explore the Kona Coast

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From

$79.99

Manta Ray Night Snorkel Kona

Slip into the ocean at night and let our crew guide you to where Kona's manta rays feed. These gentle giants can reach wingspans of up to 18 feet and will glide right beneath you. If you only have time for one snorkel trip on the Big Island, this is the one.

Captain Cook Snorkel Tour

Snorkel Kealakekua Bay, home of Captain Cook's Monument and one of the highest-rated snorkel spots on the Big Island of Hawaii. Tropical fish, Hawaiian sea turtles, and the occasional pod of dolphins — all in some of the clearest water on the Kona Coast.

Kona Snorkel Tour - Two Snorkeling Spots

Snorkel two of Kona's best spots on one trip! On this peaceful early morning 4 hour adventure you get to snorkel the beautiful marine sanctuary at Captain Cook's Monument in Kealakekua Bay and the Place of Refuge.

Dolphin & Whale Watching Kailua Kona

Humpbacks fill Kona waters December through March, and dolphins, Pilot Whales, Beaked Whales, and Melon-headed Whales are here year round. Get close to the action on an open-air boat with a naturalist crew that loves sharing what they know.

Kona Private Boat Charters

Your boat, your day. Our private "Holo Holo" charters are fully customizable — snorkeling Kealakekua Bay, watching for dolphins and whales, or just cruising the Kona Coast with the people you love. All ages welcome, contact us to plan your trip.

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Person snorkeling in Kona Hawaii, in clear blue water with a boat and coastal mountains in the background.

Why Book Your Ocean Adventures & Snorkel Tours in Kona with Dolphin Discoveries?

We keep groups small, just 12 to 14 guests, on fast, open-air boats that leave right from Keauhou Bay. You're in the water in five minutes, with plenty of space and a crew that's fully focused on making your trip great.

Our naturalist crew shares Hawaiian history, marine biology, and local knowledge on every trip. Dolphins, humpback whales, manta rays, sea turtles - every day brings something different and we love sharing it with you and your family. As a recognized leader in ethical marine wildlife treatment, we put the animals' wellbeing at the center of everything we do.

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What Our Customers Say

Snorkel Kona Coast and Captain Cook with Dolphin Discoveries

Ready to dive in? Kona snorkeling is an experience of a lifetime, and our crew is ready to show you why we’re the Big Island’s favorite for high-quality adventures at an affordable rate.

Our tours adventure around some of the highest rated snorkel spots in the world – featuring Cook's Monument in Kealakekua Bay and the Place of Refuge.

Your captain will share knowledge of the ocean, Hawaiian culture, the history of the Big Island, plus tips on how to spot the rarest marine life like a pro. Every tour offers the chance to see hundreds of tropical fish, sea turtles, and Kona’s famous dolphins.

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