Mount Folly Farm in Bigbury in Devon.
You can stay here for a fiver per person and kids free, though all you get is toilets, wash facilities and 20p showers... the view is worth a fortune, if you know Bigbury then camping is worth it here.
http://www.bigburyholidays.co.uk/16307.html The pic does not do it justice, the views are over Burgh Island and the ocean, sunsets are ace.
