"Muff Diving Club was set up in the late 1980's and has been one of the oldest and most successful diving clubs on the Island of Ireland. So if you're looking for a trip to Ireland and you fancy some diving, then Muff is the place for you, and this site is where you start." "Muff is a village in County Donegal in the northwest of Ireland which has recently become part of the outer suburbs of Derry ..." http://www.muffdivingclub.ie/