Alan, you might want to have a look at the Hams Hall fishery, near Coleshill. Around 12 miles from Nuneaton.
A good friend of my son, and member of this forum, carpdotjohn, is a syndicate member on there and loves it. My son did a recent guest overnighter with him and tells me that it's a very nice place to be.
20's and 30's are the target fish there. Google it, mate.
Ian