We live in the South West have a car and a tent if need be, no money though. Please recommend somewhere very very cheap. We can drive, fly or sail and don't mind UK or abroad although realize UK will be cheaper.
Good idea about the house swap. Check your contents and home policy first though as some don't cover you if you do this! What about going to some of the festivals in Cornwall and camping out - not sure when the elephant festival is on at Port Eliot but that sort of thing. Polzeath - you can camp on the cliffs. also try Bude. What about a working holiday - where you pick stuff in the morning and have the afternoons off or the conservation volunteers website has family stuff as well.