'Haven' (ii) was a British naval undertaking by a motor gun boat to land men and supplies of the Special Operations Executive at St Michel en Grève near Lannion in German-occupied north-western France (23/24 August 1944).
The boat in question was Lieutenant R. F. Seddon’s MGB-718 of the 15th Motor Gun Boat Flotilla, and this departed Dartmouth for the operation.