Iolo Williams begins his tour of the richest habitats in the land on his home patch, high up on the Berwyn Mountains. His trip continues to the woodlands and meadows of Gwent. Show more

Iolo Williams visits the South Stack and Malldraeth reserves on the island of Anglesey and Doludd Hafren Reserve in Montgomeryshire. Show more

Iolo Williams explores the Scottish Highlands drawing comparisons between it the Welsh landscape. The Highlands of Scotland are very similar to the mountains of Wales, but on a larger, wilder scale. Show more

Iolo Williams visits the Penclacwydd wetlands reserve in Llanelli, the former industrial heartland of South West Wales where a man made reserve has been created to safeguard the wildlife heritage.

Iolo Williams visits Skomer Island, an unspoilt offshore island and wildlife haven. Skomer Island is the perfect nature reserve for Wales' rarest species.

Iolo Williams takes a tour of the richest wildlife habitats in the land, visiting the Dee Estuary, one of the oldest reserves in Wales and home to hundreds of thousands of birds.