Geocaching is a fun way to merge technology and outdoor exploration. Folks hide a cache, typically a small container with a log book, somewhere, and people use a GPS receiver to find it. When a cache is found, the finder goes to www.geocaching.com to log the visit, maybe upload a photo and read what others said about it. Participants visit that website also for lists of caches and coordinates for the GPS-based hunts. Visit More About Geocaching in Parks for coordinates of caches in state parks.
Most state parks have at least one cache. They range from simple quick grabs easily reached from a trail to challenging multi-caches that require collecting information at one site before moving on to the next. Others, virtual caches, earth caches or waymarks, have no cache box; geocachers usually must log visits to this type of cache by providing information obtainable only by visiting the site.