The geocaching community is about giving back by getting a little dirty and clearing a lot of trash. Cache In Trash Out, or CITO, helps preserve the natural beauty of the geocaching world by cleaning up litter, removing invasive species, planting trees and building trails.CITO events are held all year long, especially during the summer months in the Northern Hemisphere. Check out the CITO calendar for events and join one near you. And who says good deeds go unrewarded? Earn The Nature Lover souvenir during the 7 Souvenirs of August by attending a CITO event in, you guessed it, the month of August.