The first leg takes Sean along the coast of north Wales and on to the island of Anglesey. Along the way searches for Britain's rarest toad, turns his hand to making a Bronze Age axe head and has a beach cookout using mussels and oysters caught fresh from the Menai Strait.

This week Sean travels down beautiful Cardigan Bay, where he helps monitor the local dolphin population, discovers a four thousand year old sunken forest on a beach and takes part in a Celtic Longboat rowing race.