If you want to add an extra dimension of fun to your travels or everyday routine, try a little GPS treasure hunting, or geocaching. When you find a cache, you take an item, leave an item, and sign the cache's logbook. There are caches close to just about everyone and the whole family can get involved.
The two things you need for a successful search are a GPS and cache coordinates. The main website for finding coordinates and clues for caches nearby and all over the world is Geocaching.com (http://www.geocaching.com/). You can make a printout of the cache information and maps to take with you in your adventure.
The Oregon is a high-end GPS, but caches can be found with a GPS that costs under $100. I started my adventures with a GPS utility on a Pocket PC. On the low end, I used a Garmin Etrex Legend. If you have a GPS-enabled phone, you may already have what you need to start your adventure. Groundspeak even has a new iPhone geocaching application.
On a recent trip to Baltimore, I decided to see if there was a cache I could pick up nearby. The cache had to be within walking distance, since I didn't have a car. I popped over to Geocaching.com, entered my hotel's address, and downloaded the results directly to my Oregon. The closest coordinates took my wife and I a few blocks over to the Inner Harbor where we found a big cache.
What did we find? A Hello Kitty watch for my wife and a fallen soldier memorial trackable tag (Pfc. Sam W. Huff) for me. There were probably about 100 items, but we liked these the best. We left some Colombian coffee, a Disney Hero card, and an Eagles Football card.
Now, it's your turn to go over to Geocaching.com and start your adventure. Who knows what you will find!