Just got home from visiting the RHS gardens at Wisley. They have two Chargemaster charging posts there, with dedicated parking bays for four electric vehicles, very close to the ticket office and entrance in car park 1. They're really well signposted and easy to find, with clear signage saying they are for electric vehicles only. They were empty when I got there, but the signs hadn't stopped somebody from parking a mini in one of them by the time I left ... I don't think it was an electric mini, it wasn't plugged in and had conventional exhausts. Totally baffled..the car park had plenty of spare spaces close by! The two posts each had one 13A socket and one Type 2 socket, and were operated by getting an RFID card with a clear instruction sheet from the ticket office, on payment of a £5 deposit, which was refunded when you return the card, so the electricity is free. I hooked up my Ampera without too many problems, though it took a couple of goes to get the thing to switch on, and for some reason it would only charge at 6A, not sure why. As a result I only managed to get about 8 miles of charge into the car by the time I left, but hey, it was interesting as my first charge in a public place, and it was free!