Events & Activities What's On/Events Hinxton Watermill Open Day Sun 4 Aug 2.30pm-5.30pm Hinxton village Come and look round this stunning working watermill, dating back to the Domesday Book. On six Sundays during the summer the mill is opened and guides will show you how the mill works and tell you the history of this incredible building. 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 walks along the river. Members free, non-members £3 adult, £1 per child. No need to book.