The Grotemolen is an historic water mill located on Molenpad in the town of Zoeterwoude-Rijndijk. The mill was built in 1626, and was bought by the Rhineland Mill Foundation in 1972. The mill is now used to serve the 520 hectare Great Polder. The Grotemolen is now ran by Pieter Hellinga, and can regularly be seen in operation. The mill is open to the public, and guided tours can be arranged upon request.
