Get ready for some adventure this summer! The Geo Adventure Challenge is the best way to explore Unalaska and our great parks with your friends and family. Take the challenge by registering at the community center and pick up your clue packet. Then start looking for the Special geo cache boxes hidden around town to collect your prize! All participants that complete the entire challenge will be awarded a Geo Adventure Challenge t-shirt! T-shirts will be available at the end of summer.