What is Piratemania?

"Piratemania is officially England’s biggest annual Geocaching event. The whole ethos is good, honest piratey fun for all ages. The first event in Europe to have achieved Mega status through organic growth, it’s a testament to each and every pirate that attends that we keep on growing, year on year. Expect the unexpected! The true spirit of Piratemania is best enjoyed in full pirate clobber, in a tent or caravan, with a glass of rum in your hand! "