Along the banks of the Oer-IJ.

From the starting point Huis van Hilde in Castricum, the route runs along the western bank. In Heemskerk, the foundations of old castles lie on the dry sand. In Beverwijk along countryside such as Scheybeek . At the North Sea Canal, which is dug in an old part of the IJ, the tour goes along the eastern bank via old medieval dikes to the villages of Uitgeest and Limmen. Along the Aagtendijk is part of the Defense Line of Amsterdam and the fortress on the St. Aagtendijk. The tour ends via the Zanddijk and Bakkum at the House of Hilde. More information at Stichting Oer-IJ