Hanauma Bay
Oahu · 1-4 m · often 10-20 m · ticketed mornings
A flooded volcanic crater and MLCD. Timed tickets, a video brief, and closed days manage the crowd that made the bay famous.
Eight real sites: Hanauma, Molokini, Kealakekua, Two Step and more.
These are famous, mapped sites. Wind and swell change; towers and boats publish the day. Depths are typical published bands, not a live plan.
A ticketed or towered shallows is the correct first Hawaiian water.
Oahu · 1-4 m · often 10-20 m · ticketed mornings
A flooded volcanic crater and MLCD. Timed tickets, a video brief, and closed days manage the crowd that made the bay famous.
Maui · 2-10 m · often 15-30 m · morning trips
A crescent tuff cone. The inner crater is the classic boat-snorkel; the back wall is a current scuba site, not a first snorkel.
Hawaii Island · 2-15 m · often 15-25 m · morning calm
A MLCD with a monument shore, reached by boat or a steep trail. Clear water, boats, and heat on the land route.
Hawaii Island · 1-8 m · often 10-20 m · morning
A lava-ledge entry near Pu'uhonua o Honaunau. Ankles and urchins are the local tax; coral is close.
Lanai · 10-20 m · often 15-25 m · boat days
Lava caverns and light rays, typically a Maui-or-Lanai boat scuba. Overhead-adjacent; a guide and a brief, not a snorkel.
North Shore Oahu · 1-6 m · variable · summer calm
A rocky tide-pool and cove that is a summer snorkel and a winter close-out. The name is folklore; the swell is not.
West Oahu · 3-12 m · often 10-20 m · calm mornings
A power-plant outflow that concentrates fish and snorkellers. Current and a working-industrial shoreline; not a wilderness bay.
Hawaii Island · 8-12 m sit · night · calm nights
Lights, plankton, mantas. A sit-dive or snorkel product with tightening no-touch codes. Wind cancels. See night-diving.
Hawaii is a ticketed crater, a few lava steps and a night that must stay gentle. The North Shore in winter is a different chapter.