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A derivate of Geocashing is Geohashing, which started with an xkcd comic. The basic principle is the same: you take a pair of coordinates and try to get there. What differs is the way these coordin...
Answer
A derivate of Geocashing is Geohashing, which started with an xkcd comic. The basic principle is the same: you take a pair of coordinates and try to get there. What differs is the way these coordin...