King of the sandcastles! Egypt's stunning desert hotel where mobiles are banned, there's no electricity and it costs £460 a night.

• Prince Charles and the Duchess of Cornwall visited the socially-conscious Adrère Amellal resort in Siwa There are no phones in the rooms and guests are not allowed to use their mobiles in public areas of the resort Buildings designed to look like they are rising out of the surrounding desert and all 40 rooms rely on candles for light Meals are cooked using traditional methods and made using herbs and vegetables picked daily from the hotel garden