This is the Adelaide Wreck at Terrigal, Central Coast.

Plenty of fish and soft coral around, some of the door in the railing was un-hooked and was swinging lightly, it was spooky! Overall it was was good dive. Filmed with Sony RX100 V in Nauticam Housing, Inon wide macro lens and 2 video lights of 10,000 lumens combined.

Credit to Sylvi S by Critters Republic