Passionate wildlife expert and `Springwatch' presenter Iolo Williams searches for extraordinary wildlife in an exciting journey along the varied landscapes that make up the borders of Wales, known as the Welsh Marches. Starting at the Severn estuary and making his way up to the Dee estuary. Along the way he'll visit nature reserves and wetlands, woods, reclaimed industrial areas, lagoons and marshes, spotting wildlife along the way.
How to watch Iolo's Borderlands
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