Geoclues

You're on a deserted island. But don't worry, you're not stranded - you're with friends and family and you're having fun. You're playing a game where players hide "caches" (treasure chests) for each other to find. The caches contain coins and clues, and you'll use your navigational skills to tour the island and find them. The first person to collect a coin from each player and follow the clues to the "mystery cache" wins the game.

Home Page : http://www.scholartainment.com/pgc.html