Neil Oliver performs the lead role in an extract from Shakespeare’s "The Tempest" on the stage of a remarkable coastal amphitheatre near Land's End. Nick Crane ventures out into the infamous "Portland Tidal Race" to see how this fearsome tidal surge creates some of the roughest waters in Britain, surprisingly close to the tourist beaches and Georgian splendour of Weymouth. Miranda Krestovnikoff goes in search of a family of White-Beaked Dolphins and Alice Roberts follows her nose to discover what gives the sea its distinctive smell. In Devonport, Mark Horton has privileged access to the historic dockyards to see where the wooden ships of Nelson’s Navy were built. Mark reveals how the steel fleet of the modern Royal Navy still relies on the age old skills of wood working.