Nick Crane heads to Cape Wrath - the most north-westerly point of the UK mainland - to visit his favourite beach, and learns how the area was once home to Britain's smallest school and why this wild landscape had to be abandoned.
Ruth Goodman reveals how a Victorian craze for collecting ferns drove genteel women to extraordinary lengths on the perilous paths along the sea cliffs of Devon, while Adam McIntosh follows a secret underwater path off the isle of Iona in search of green marble.