Also in Torndirrup national Park is a spectacularly blowy hole. Basically it is a fairly nondescript hole in the rock platform, 15 metres or so above the water line of the surf below, and about the same distance in from the cliff face. As the swells roll in from the Southern Ocean waves compress air into a cave hidden below, forcing air out at high velocity. The day we visited it was fairly calm – the signs warn that on stormy days rocks can be projected out the hole. Nevertheless the rushing of air is like standing in the draft of a body sized, high velocity hand drier.