Hi John, it seems you have chosen to camp in Arrow Valley Park? perhaps not the best choice given all the football fields, skateboard, BMX tracks and other amenities within the park i doubt you would get much privacy or peace, not to mention the local warden
if you have transport or can get a lift there are several excellent meets posted up in and around the west midlands area, just keep an eye on the Midlands thread.
if however you want to go further afield or want your own spot, pick an area and survey the OS maps, and do your legwork to find ownership. then it gets a little difficult!
good luck in your search