Department of Natural Resources
The Michigan State Parks Centennial GeoTour, a partnership with the Michigan Geocaching Organization, is your opportunity to seek out 100 new caches while tipping your hat to 100 years of state parks. It's a fun way to explore, and you will join the 3 million geocachers looking for millions of caches located all over the world. It's a bit like a modern-day treasure hunt.
All you need to do is download the App to your smartphone (or download coordinates to your GPS unit), pick up or download your GeoTour ticket, and you’re ready to begin! Once you find a certain number of caches, you can earn rewards.