Geocaching by Prof. Y. Lupardi Preview
How I use my GPS 12 on the bicycle. Max. accuracy with GPS. (also postprocessing) Use of Ozi Explorer and Dutch maps. Use of Dutch Grid in handheld GPS types. Tips and tricks. Legenda for topographic maps. Hunting Dutch benchmarks (RD-meetpunten). All my caches (extra info, aireal photographs, maps, newpaper clippings, satellite images etc.).