Webeck Harbour is too open to be safe in heavy weather but is a useful anchorage in settled conditions.
Grave Bay is a shallow, sandy cove on the S shore of Webeck Harbour. The bottom is flat and level sand but has a depth of only 4 ft 6 in (1.3m) at low water springs. Swing room in the cove is restricted by at least one boulder standing 1 to 2 ft (0.3-0.6m) above the otherwise level bottom.
The anchorage is only useable by a shoal draft vessel, preferably on a neap tide. Unfortunately the nearest all-weather anchorage is probably Tuchialic Bay, 17 nm SW. The anchorage W of Harbour Island is safe except with winds form NW to SW
The cabins in Grave Bay are derelict.