we hired a quad bike in Calis last year for the day.Cost us £30,we clocked up 250klm on it.It was brilliant.Only downfall was they supplied us with these german war style helmets,god knows what we looked like driving up the road.All the locals were waving and laughing,probably thinking ..idiots.lol.Going back to Calis end of august and would do it again.
Enjoy.