Leusden, Woudenberg, Renswoude

The Grebbe Line was constructed in the 18th century as a defence line and consists of well camouflaged elements such as outposts, forts, retaining walls, sluices, bunkers, casemates and trenches. By flooding parts of Gelderse Valley, the centre and west of the Netherlands were protected against the enemy. In 1939-1940, the line was used for the last time and was called the Valley Line.

The dozens of kilometres with hundreds of years of military history are now hidden in a beautiful green nature reserve. This cycle route takes you along a part of the Grebbe Line where you can go back in time at various places and view the defence works, many of which have recently been restored.