It is where you take a GPS (Global Positioning System) and go treasure hunting. You can go to Geocaching - The Official Global GPS Cache Hunt Site and find caches in an area you intend to visit, Lincoln park has about 6 or so in the area. Then download the coordinates into your handheld GPS and go hunting. It is a lot of fun to find them, when you find a cash you sign a log book and take a trinket from the cach and leave one as well. Some are very hard and you may have to search for several times others are great for beginners and kids and easily spotted. It is great practice in using your GPS and teaches kids about orienteering and even map reading. St. Meinerad Abby has several around it some hard some easy, you can spend a day in this area walking and searching.
Thanks for the information. That does sound like fun and something my family might really enjoy.
Thanks again.