Introduction The Rules Choosing a GPS Find a Cache Responsibility                   This growing outdoor sport has a simple set of rules, making it easy for everyone to play. The most challenging part is finding the cache. Some caches have even been planted in cities, on mountainsides, and even underwater! After you find a cache, follow these 4 basic rules: 1.) fill out the logbook 2.) take something out of the cache 3.) put something in the cache 4.) return the cache to the exact position and condition in which it was found Caches typically consist of a waterproof container discreetly placed within the local terrain. The container will include a logbook and any number of more or less valuable items such as toys, books, money, jewelry, trinkets, etc. You never know what the founder or other visitors of the cache may have left for you to enjoy. Be sure to fill out the logbook with the date and time you visit the cache and leave something in return.