Meet at 10.00 am in the car park for Cassiobury Park. The car park is at the top of Gade Avenue, Watford, which is off the A412 Rickmansworth Road. We will walk through the park, visit the conservation area, and then take a break for coffee. You can also join the walk by walking from the Met Line Station at Watford, turn left as you leave the station, turn right at the end of the road into Gade Avenue, and you will see the car park ahead. We meet at the far end of the car park.