Depth: Maximum depth about 13 m on the sand. Marine life: There are a lot of gorgonian sea fans (Eunicella spp) at the base of the ridges, Higher up are Multicolour sea fans, and the tops are covered with Red bait. A variety of other sessile animals encrust the rocks among these zones, and there are various small seaweeds as well. Photography Good photographic site for invertebrates. Topography: Stone Dog and The Slot: There is a deep narrow gully ("The Slot") 100 m south-west along the shoreline from the entry ledge, which connects by a short, shallow, narrow tunnel at the surface to a second gully (“Stone Dog gully”) which opens to the bay about 150 m from entry point. There is a large rock above this gully which from the water looks a bit like a sitting dog. The Slot is deep and narrow, with almost vertical sides, getting shallow suddenly at the tunnel, then a similar gully another side at roughly 90° to the Slot. The tunnel is mostly in the intertidal zone and is angled sharply down on the seaward side. Quite a strong surge usually runs through the tunnel and may rise to the ceiling. This could be very dangerous in a big sea. Position of a tunnel approximately S34°10.370’, E018°50.202’. Stone Dog gully has several relatively big boulders in it and the surge can be quite strong. About 30 m further west along the coastline is Red Bait gully, a deep narrow gully a couple of metres wide and about 7 m deep, with walls covered by red-bait pods. Another 40 m west is a pair of gullies of similar depth but somewhat wider, at the extreme east of the "Pinnacle" dive site area.