Short fro Brethren of the Gilbert. 
Think Pirate Gathering, except taking place on a river island that can only be reached by boat.  And most of the people are older.  There's a pig roast and pirate olympics (that are mostly really intricate drinking games that involve relay-races)
Anyway.  My latest creation
( Based loosely (or entirely?) on Tail Spin's Don Karnage )