An easy and relaxing dog walk through fields alongside the River Cam. I read somewhere that war poet Rupert Brooke and Virginia Woolf used to skinny dip in the river by moonlight.
A large car park, easy access to the river and tasty food makes this a popular place to enjoy an easy dog walk, with doggie swimming, and take a break.
Smart gastro-pub just outside Cambridge, and within a moment of the M11 Jct 13. The dog walk is a there-and-back over fields, and there's a shorter option if you need to keep your feet dry.