Pleasure Island Family Theme Park was a theme park in Cleethorpes, North East Lincolnshire, England. It was commonly known as Pleasure Island. The park opened on 27th May 1993. It was originally a subsidiary of Flamingo Land Ltd
Firth Brown is a former medical centre would have been used to treat injured workers and although not quite underground its buried behind a large wall with a small access space and under a car-park; its sadly now in a serious state of decay, however still worthy of a visit.