Fodor's Expert Review Halona Blowhole

Below a scenic turnout along the Koko Head shoreline, this oft-photographed lava tube sucks the ocean in and spits it out. Don't get too close, as conditions can get dangerous. Look to your right to see the tiny beach below that was used to film the wave-washed love scene in From Here to Eternity.

In winter, this is a good spot to watch whales at play. Offshore, the island of Molokai calls like a distant siren, and, every once in a while, Lanai is visible in blue silhouette. Take your valuables with you, and lock your car, because this popular scenic location is a hot spot for petty thieves.