I haven’t been to Woody for a while, and I wish I’d seen the massed gathering of cownosed rays (Rhinoptera neglecta) there last weekend. There’s a media report and photos at ABC North Coast.
The Australian Museum says:
Cownose rays are usually found in large schools near the surface. They have a distinctive bi-lobed head, with two large fleshy lobes under the snout.
They apparently feed in these large groups, searching the sea bottom for crustaceans. The Woody Head bay is relatively shallow, and these came in really close to shore, as the photos show. Nice!