Carl Edwards begins his tour of the canals of Wales, starting on the Monmouthshire and Brecon Canal.Carl learns how to drive a narrowboat on the stretch between Pencelli and Llangynidr. Andrew continues his visit to the fascinating Island of Skokholm. He hears how the island's buildings were saved by a group of determined volunteers from the Friends of Skokholm and Skomer society. Wardens and sea bird experts, Richard Brown and Giselle Eagle, take Andrew on a tour of the island's wildlife.