Pools of Mokolea

Group of several tide pools and also one blowhole. This blowhole does not produce large splashes but it looks impressive due to a visual effect – in many images, it looks as if the ocean is falling into this hole.

Makena Blowhole

Small blowhole in one of the most recent lava flows on Maui.

Toilet Bowl in Oahu

Large hole in the rocks. With each wave, the level in this hole rises and then falls again through a cave. During storms here might rise fountains of water. Earlier this was a beloved swimming place, albeit dangerous. Now it is fenced off.

City of Arches at Honaunau Bay

Some 3 km long stretch of sea shore with numerous interesting geological formations in pahoehoe lava: natural arches, sinkholes and also several blowholes.

Spitting Caves in Oahu

One of the Spitting Caves, Oahu

Sea caves with blowholes. As the wave enters the cave, air pressure forces a slanted fountain of mist and water.

Nobbies Blowhole

Nobbies Blowhole

At the end of a narrow sea bay in the basalt has formed some 12 m long sea cave. As the waves enter the cave it fires a nearly horizontal plume of mist and water.