Actor and keen gardener Richard E Grant takes a break from filming and embarks on a tour of the gardens of northern France to find the waterlilies and other flowers which inspired the Impressionists. Alison Goldie finds Greek islands with a hidden side kept secret from the crowds, and Matthew Collins takes a luxury cruise around the coast of Scotland visiting the spiritual isle of Iona and the wild island of Colonsay. With Penny Junor.