Alofaaga Blowholes

"These awe-inspiring blowholes are situated on a scenic coastline near the Taga village on the Samoan island of Savai’i. (You’ll sometimes hear them referred to as the Taga blowholes.) The Alofaaga blowholes and others like them developed thanks to lava flows that gradually carved out underwater caves. These sea caves grew upwards towards the land, until they became tunnels connecting the ocean to the rock face above. When water breaks against the seaward end of one of the Taga tunnels, it rushes into the tube, erupting through the hole above ground in a waterspout that may be as high as 20 meters, but is often much higher. The accompanying water pressure also causes a loud puffing sound, that punctuates each gush of seawater."