Opposite Steeple Rock is a blowhole in Asparagus Island which shoots a plume of water with a suitable roar and rumble .
The blowhole is at the end of a long channel / tunnel cutting through Aparagus Island.
The plume of water comes through a narrow slot - The Devil's Letterbox .
This photo was taken at low tide (0.3m) - with a heavy swell.
Location: SW 6828 1326