Can recommend 'Quarry Walk Park', which is at Freehay, Staffs, about 3 miles from Alton village. This is a beautifully set site in an old stone quarry, now thickly wooded. All pitches have hardstanding and water and electric hook up. Open all year. They have a website too (haven't got it, sorry!). There are walks around the site in the woods, and the surrounding countryside is absolutely beautiful. Loads to see and do in addition to the inevitable Alton Towers!. Hope this helps.