Rotterdam, Netherlands - 7.8 miles from Katwijkerlaan: Kralingse Plas / Rotterdamsche Zeilvereeniging - Viewing the lake at the RZV clubhouse, Windfinder Weatherstation located on the white tower.
Gouda, Netherlands - 10.5 miles from Katwijkerlaan: View from the new City Hall - Webcam on the top of the new City hall. Aimed at parking and the tunnel under the train tracks.
Amsterdam, Netherlands - 29.7 miles from Katwijkerlaan: Amstel and Magere Brug - A video showing the river Amstel and the Magere Brug in Amsterdam, the Netherlands.