Halona Blowhole, Waimanalo Photo fromStephanie Hart
This is a shot of the blowhole with the waves going out. The blowhole is a lava tube with an opening above water level, and one below facing towards the waves. Address:
Halona Blowhole II, Waimanalo Photo fromStephanie Hart
This is a shot of the blowhole with the waves going in. Here, the pressure of the waves forces water through the tubes, so it appears as if it is "blowing" salt water. Address: