If your doing 12 days you should get it for £10 per day, our friends got a them for £15 for 2 days, but double check the bikes, (one of them was faulty and he had an accident) and double check what the insurance covers you for, dont want to be a kill joy, but best safe than sorry, and go straight to the petrol station when you get one, there's never any petrol in them, failing that get a car, (please).