The cliffs below Mount Storey, Schouten Island's highest point, drop into moderate-depth water with large granite boulders. The Marine Life Network guide rates the site 6 out of 10: shallow (about 10 m) near shore, then a quick drop to 25 m, with very large banded morwong among the boulders and rare crayfish and abalone.

The boulders create a landscape of cracks and overhangs typical of Freycinet granite, and the size of the banded morwong is a sign of how rarely the site is fished or dived. Sponges and zoanthids grow on shaded faces, and schools of butterfly perch are likely on the deeper boulders.

Because the site is exposed to the south, it works best in north-easterly weather, which is often the case on summer afternoons.

Schouten Island is part of Freycinet National Park. Its granite and dolerite peaks rise to over 400 m, and the island has no permanent residents, jetty or facilities apart from a Parks hut and campsite at Moreys Bay, so divers visit with self-contained boats. The island's sites were described in detail in the Marine Life Network regional guide, but few have been documented since; with no operator currently running trips, they are among the least-dived good sites in Tasmania.

A typical Schouten day combines one deeper dive on the exposed eastern or southern side with a shallow second dive in a sheltered bay, choosing sides according to the swell. Because the island is at least 45 minutes from the Coles Bay ramp and more than four hours by road and boat from the Royal Hobart Hospital chamber, conservative profiles, oxygen on board and a reliable weather window are essential.

Coles Bay is 30 minutes south of the Tasman Highway via the C302 (turn off 12 km south of Bicheno), about 2 hr 45 min from Hobart and 2 hr 30 min from Launceston. The main public boat ramp is at Coles Bay township; boats reaching the ocean side of the peninsula or Schouten Island need a seaworthy vessel, as the run around Cape Degerando or through Schouten Passage is exposed. Schouten Island lies across Schouten Passage from the southern tip of the Freycinet Peninsula, roughly 25-30 km (about 45-60 minutes in a fast boat) from the Coles Bay ramp via Promise Bay and the western shore of the peninsula.

Swansea's ramp on the western side of Great Oyster Bay is an alternative. Schouten Passage can run hard with wind against tide. The Mount Storey cliffs are on the southern side of the island below its highest peak.

The Mount Storey cliffs are exposed to southerly weather and swell but sheltered in north-easterly conditions, which makes them a useful site on days when the summer NE sea breeze is blowing. Rain washes tannin-stained runoff into Great Oyster Bay, and summer afternoons commonly bring a fresh north-easterly sea breeze, so plan dives for the morning.

Descend near the shore at about 10 m and follow the quick drop to the granite boulders at 20-25 m. Explore along the boulder field, then return up the slope for a safety stop in the shallows. Turn the dive at half gas (thirds where current or overhead sections are involved), deploy an SMB before surfacing for the live-boat pick-up, and complete a 3-minute safety stop at about 5 m where depth allows.

No dedicated dive operator at Coles Bay or Freycinet. Sites are dived from private boats and occasional club expeditions (Tas Uni Dive Club, TSDC, Launceston clubs); the Marine Life Network guide notes that Coles Bay is the usual starting point for Schouten Island charters. Cruise and kayak operators in Coles Bay do not offer scuba.