Spitting Cave of Portlock
100 Hanauma Bay Rd, Honolulu, HI 96825, USA
A Spitting ImageWe learned about this hard-to-find, stunning "spitting cave" in our guidebook, Oahu Revealed. Accessed via a semi-hidden public access walkway (there's a sign) in the dead end at the end of Lumahai Road, the short but steep trail leads down to a dramatic shoreline of layered volcanic rock. Incoming waves slam into the cave, hit the back wall, and come blowing out in a blast of spray and thunder that's truly impressive. It's a bit tricky to find, but worth a quick side trip if you're doing the drive around Oahu.