https://www.strava.com/routes/2946084993426762362

Its an 8km circular route starting at Ambury Lane car park in Harpenden at 7.30pm, the route will go through  Rothamsted Park and then along the Nicky Line circling back around the golf course and ending up in the pub near the car park.

Drink at the Oddfellow Arms in Harpenden afterwards.