As summer season gets underway, many of us head to the coast to cool off - but the unpredictability of the cold water combined with strong currents can prove fatal. Keeley investigates what we should do if we get caught in a rip current; Jules finds out why our seagulls are heading into town for an urban free lunch, and - from a top-secret location - Margherita reports on a summer crop that's being grown for pain relief. Paul Martin will be breathing new life into his Victorian smallholding in Wiltshire. His Summer diary starts with his fruit trees.