The Grotto
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Saipan, Northern Mariana Islands
Best timeYear-round
Water temp27-29°C / 81-84°F
Visibility15-30m / 50-100ft
AccessShore Dive
Dive typesScuba, Snorkel, Freedive
DifficultyIntermediate
Max depth20 m
Avg depth15 m
Nearest airportSPN
Cavern diveStunning light effectsBlue water
ScubaSnorkelFreedive
The Grotto in Saipan is a spectacular cavern dive. The dive begins by descending into a large sinkhole on land, which opens up to the ocean via three massive underwater archways. The view from inside the cavern looking out into the deep blue is breathtaking.
Features
A large limestone cavern connected to the open ocean by three underwater tunnels. On sunny days, sunlight streams through the tunnels, creating a brilliant blue glow inside the cavern. Divers can explore the cavern and the outer reef walls.
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