Pie Rock reef and Outer Castle or Castle Blinder is an offshore rocky reef with a group of dive sites in the Castle Rocks restricted zone on the False Bay coast of the Cape Peninsula , near Cape Town in the Western Cape province of South Africa.

These areas are situated along the South African Coast and are accessible to the public and are known dive locations to the locals from in and around the area, please respect their local fauna and flora, remember limit your catch and don’t catch your limit.