Hanauma Bay — a pristine volcanic marine sanctuary on Oahu, known for calm, clear waters and abundant tropical reef fish. Ideal for snorkeling on a shaped bay sheltered by a natural rim.

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Geography

AddressHanauma Bay, Honolulu, HIHanauma Bay Road
ContinentNorth America
RegionOceania
SubregionPacific Islands
CountryUnited States
StateHawaii
CountyHonolulu County
DistrictEast Honolulu
CityHonolulu
NeighborhoodHanauma Bay Nature Preserve
Postal Code96825
TimezonePacificHonolulu
Latitude21.2718
Longitude157.6996
Maps
☀️4:14 PM LOCAL TIME

Hanauma Bay is a natural crescent-shaped bay on Oahu, formed in a volcanic cone and now protected as a marine recreation area. Known for its calm, shallow waters and vibrant coral reef, the bay offers some of the best snorkeling opportunities in Hawai'i — home to species such as parrotfish, sergeant major, and stripey eels. The bay’s coastal rim partly shelters it from open ocean swells, making it suitable for beginners and families, though strong currents can appear at the entrances or during high surf. A visitor center introduces visitors to marine safety and reef etiquette, and a small tram service provides access from parking areas. Parking is limited, so plan to arrive early and consider public transit or shuttle services. Beyond the water, the surrounding Hanauma Bay_ area features oar- and walking-accessible trails, shoreline tide pools, and designated photo points — making it a compact but immersive stop for underwater parks and island views.

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