Sepia apama, the Giant Cuttlefish, is the largest of the cuttlefish and a South Australian draw-card critter. Thousands of cuttlefish congregate to mate in the shallows at the top of Spencer Gulf each winter creating amazing opportunities for divers and snorkelers to observe their antics in only metres of water.

This guy however lives out in the seagrass near Rapid Bay jetty where there was evidence enough he was up to antics of his own.

Photo: Robert Rath, ‘The Giant Cuttlefish’ 1/200s f/8 ISO160 15mm