Geocaching is a sport I used to do a lot! With gas prices going up, and the dollar not stretching like it used to, a tank of gas for an afternoon of geocaching in the northwoods doesn't go as far as it used to. While I haven't done it for a bit, I still watch for new ones in the area I hope to get to someday. The greatest thing about it for me was that it was an excuse to be able to get out in the woods...
Many GPS' have a ton of features, and for some people they are just complicated enough to not be able to grasp some of the features and navigation methods. WHat I find Geocaching does is gets me decent enough practice with the GPS receiver that come times of emergency or whatever I would otherwise use it for, I am able to quickly set it up for what I want. I've been able to do it to land helicopters, set up tracks while doing LE woods work, and a bunch of other things. It would work the same way for sportsmen when it comes time to set it up for when they follow a blood trail, or set a waypoint to get back to the vehicle at the end of the night.
Geocaching has two points of fun with it. #1 is the sport of using the GPS to navigate towards the cache and figure out routes and the best way to it. Since GPS' have varying degree of accuracy, none of the common commercial units will get you within more than a few feet radius at best. So the goal of #2 is to figure out how it is concealed. Then you have regular caches that are sized to hold items like you'd find in Grandma's junk drawer-you never know what you're going to get (Rule, one of the few:If you take an item, leave an item!)! Micro caches are the other common type, and these are more common in urban or areas where there are a lot of people around. Stealth is the goal with cache placement, and some people have fun with the stealth of a secret agent looking for a drop with these. Some of the placements of the micros are purely evil... I prefer the regular ones myself that have more of a woods/wilderness theme.
I worked as a Deputy for a rural county for a number of years. I got to know the ins and outs and trails pretty good, and my goal was to have a number of caches throughout the county at some of the awesome -out-of-the-way places people don't normally get to find. Some were easy enough in a park, the toughest involved a 50-yard belly crawl under the branches of a pine plantation for one and a two mile hike with river crossings for another. I tried to create different ones for everyone to enjoy. Its a sports that anyone with a GPS can do, and it is just a matter of finding which way of doing it that one enjoys the most. I encourage anyone interested to go out, give it a try, and don't quit.