hobby #142
Geocaching
GPS-based treasure hunting using satellite navigation to find hidden containers — logbooks, trinkets, and coordinates — left by other cachers worldwide.
Four Metres of Accuracy Around a Film Canister
GeocachingThe GPS insisted I was standing on top of it. I'd been staring at decorative boulders for twenty minutes.
code-a-day tied to this hobby
- Turning GPS Coordinates Into Postal Codes Geohashing