Hawaii Scuba Diving
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Home >> Oahu Dive Site >> 100ft Hole

100ft Hole
Island Name : Oahu
Dive Zone : South
Depth : 70-160 feet
Access : Boat
Location : South Shore
Visibility : 100 feet
Level : Intermediate - Advanced
Sealife : Crabs, Nocturnal Fish, Lobster, Octopus, Moray Eels, Turtles, Manta Rays, White Tip Reef Sharks, Tun
Water Temperature : 70/75 F, 21/24 C from November to April
75/80 F, 24/27 C from May to October
Located near Diamond Head, 100 Foot Hole is an ancient Hawaiian fishing ground that was accessible only to the Ali'i (Royalty). Although this hole is only 70-90 feet deep, it got its name from fishermen, who, after being asked how deep it was, answered, "it's about a hundred feet" and the name has stuck. The site is constructed from a cluster of volcanic rocks tumbled together to form ledges, caves and one large open-ended cavern. One formation, encrusted with cauliflower coral, houses the main tunnel. Within that tube there is an obstructing rock that can easily be traversed. Boats tie off to a naturally formed lava anchorage in 75 feet, just south of the focal boat of the dive. Bring a light to view the bountiful marine life inside the cave.

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