Oahu's Hanauma Bay Nature Preserve offers visitors an unparalleled opportunity to get up-close to an incredibly varied marine ecosystem. Snorkelers can expect to see the strikingly patterned butterfly fish and swim with majestic green sea turtles, to name just two of the more than 400 marine species to be found here. What's more, the preserve is also home to myriad beautiful and intricate coral formations.
When you arrive at Hanauma Bay your first stop will be the Marine Education Centre. This sensitively designed structure mimics the shape of a volcanic cave. Here you'll learn about the biology and habitat of the area, and the preserve's mission to protect it, before you enter the bay itself. Admire the centre's bright murals and discover the science behind the area's geographical and coral formations. Watch a short film on the biodiversity of the area before you test your knowledge at the interactive fish identification stations.
Then it's time to try your hand at identifying different species in the wild. Grab a laminated fish identification chart from reception and head to the beach.
Marvel at the striking shape of Hanauma Bay, its coastline curving dramatically around sparkling waters. Formerly a volcanic crater, over time the ocean eroded the south-eastern side and forced its way in. This created a sheltered bay rich in nutrients: the ideal environment for a thriving marine ecology. When you're ready, don your mask and snorkel, step into the crystal clear ocean and enjoy the incredible array of natural wonders on display.
If you're coming to the Hanauma Bay Nature Preserve from Waikiki, you'll need to head east along the Kalanianaole Highway for 16 kilometres. You can hire snorkelling gear from the rental shop near the Marine Education Centre if you don't have your own. Visitors are welcome to bring food and drink into the preserve, and there's also a snack bar on site.
It's a short walk from the Marine Education Centre to the beach, but you can catch the tram for a small fee if you prefer. Hanauma Bay Nature Preserve is open every day except Tuesdays.
Hanauma Bay Nature Preserve
Visit Hanauma Bay Nature Preserve
Shows & concerts
See all 16 activitiesOpens in new tabWaikiki Luau Buffet with Optional Rock-A-Hula Show
Cruises & boat tours
See all 39 activitiesOpens in new tabSunset Dinner Cruise with Polynesian Show
Adventure & outdoor
See all 29 activitiesOpens in new tabJungle Expedition Tour at Kualoa Ranch
Spa & wellness
See all 10 activitiesOpens in new tabOcean Massage: A floating massage in a warm salt pool
Classes & workshops
See all 26 activitiesOpens in new tabTry Scuba Diving for Beginners Free Videos of your adventure included
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