Steven Bowater spent the night at the top of an Eryri - also known as Snowdonia - mountain on a cliff that fits one tent and is surrounded by vertigo-inducing 350m (1,150ft) drops on three sides.

3. Rum, Scotland Half the fun of wild camping comes from the giddy sense of being off-grid, and in the UK there aren’t many spots more disconnected than the Isle of Rum. It’s a sizeable island ...