Events & Activities What's On/Events Hinxton Watermill Open Day Sun 2 Oct, 2.30pm-5.00pm Hinxton village Come and look round this beautiful working watermill. The mill will be working guides will show you how the mill works and tell you the history of this incredible building. The mill dates to the 17th century and is the only watermill still working on the River Cam, there has been a watermill here since before the Domesday Book. Children can take part in the popular Where’s Ratty contest and have the chance to win a prize! Owned by local charity Cambridge Past, Present & Future and run by dedicated volunteers the mill is set in picturesque surroundings on the River Cam, in the village of Hinxton. There are also lovely walks along the river and picnic benches. Members free, non-members £3 adult, £1 per child. No need to book.