St Michael's Mount, Cornwall

(Click to enlarge) Site of a medieval monastery now inhabited by a wealthy family looked after by the National Trust. In the foreground is the causeway by which the island is reached at low tide. There is an additional charge for a ferry should you be still on the Mount after the causeway is submerged by the incoming tide. As a fellow passenger remarked "This is the first time I have had to pay to leave a place."