A newlywed South Korean couple say they are undergoing counselling after being told that the windows in the luxurious spa of their five-star resort hotel were of one-way glass – only to discover on the final day of their stay that they had been walking around naked in full view of other guests.

The husband posted a complaint online about the Grand Josun Jeju Hotel, on the island of Jeju off the southern tip of the Korean Peninsula.