Hālona Blowhole

[7] The Hālona Blowhole was formed thousands of years ago during the period of volcanic activity in Oahu,[8] with Koko Crater's lava flowing into the ocean.

[9] There is also a narrow rift along the base of the cliff which was formed by a large section of rock that broke away from the land.

[10] Hālona Cove, called "Cockroach Cove" by the local population, is the small pit of sand close to Hālona Blowhole,[11][5] visited by tourists and locals for swimming when the surf is calm.

[citation needed] This was the site of the sex scene between Deborah Kerr and Burt Lancaster in the 1953 film From Here to Eternity,[14] and also between Drew Barrymore and Adam Sandler in the movie 50 First Dates.

Below Hālona is one of the most dangerous ocean currents in the world due to the Ka Iwi channel.