We walked from the parking place near the sporting facilities west of De Bilt (also known as “Groenkan”) to Den Dolder, partly through woodland, partly through inhabited areas – big houses. The whole route was said to be about 25 kilometers but in fact it turned out to be about 20 all together. Most of the way back, my GPS lost signal so I had to reconstruct the track on the computer. These are the tracks in Garmin, GPX and CSV format – and these are maps and the few pictures I took.