Whether you are an intrepid backpacker looking for adventure or a pleasure-seeking hedonist, finding the perfect stretch of coast is one of the top priorities. Justine Shapiro and her fellow travellers make your task a little easier with a month-by-month guide to some of the world's best beaches. From America to the Caribbean islands, Europe, Africa, Asia and Australia, visit some of the far-flung shores where they have bathed, surfed, dived and even slept.