Today I learned about Geocaching – basically orienteering with a handheld GPS receiver. The task is to find an object hidden, usually in a public park, by another Geocacher. The Geocaching.com database records the exact latitude and longitude of more than 70,000 caches you can search for.
There are several within two miles from my house and two in Bluebird Park (walking distance from home).
I'll post details about my first hunt. Next weekend?