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Halona Blowhole is a site that showcases Oahu’s rugged coast and beautifully turbulent seas.

Halona Blowhole in Oahu | Photo by Napnet at English Wikipedia, Public domain, via Wikimedia Commons

Halona Blowhole

Located about 20 minutes from Waikiki, Halona Blowhole is an underwater cave that spews water into the air like a geyser. It was formed when a piece of the cave’s ceiling collapsed. Now, when it fills with water, the pressure has nowhere to escape but through the hole. This causes water to shoot out in a pressurized mist, resembling a whale’s blowhole. On days with strong winds and high tides, the water flies many feet into the air. 

The spectacle is wonderful to witness and there’s a lookout point where you can watch the entire thing unfold. On a clear day, you might even see Moloka’i from the lookout, and in the winter, keep your eyes peeled for humpback whales.

Pro Tip! Visit Halona Blowhole on Shaka Guide's East Oahu Shoreline Drive! 

SHAKA GUIDE'S OAHU TOURS: Grand Circle Island Tour, East Oahu Shoreline Drive, Honolulu's Backyard Rainforest Tour, Legendary North Shore Loop, Heart of Waikiki Walking Tour, Historic Downtown Honolulu Walking Tour