4/6 Clare Balding presents a series of inspirational walks in the British countryside.
BBC Radio 4
Ruth Padel explores the wild salmon's extraordinary life and its impact on humans.
BBC Radio 3
Ruth Padel on what owls mean to us and what they can show about the British landscape.
Petrarch's account of how he and his brother once set out to climb a mountain in Provence.
Could there be a cheaper, safer way to create nuclear energy? Julian Rush investigates.
Ruth Padel explores how history and literature have shaped our reactions to wild ponies.
Miranda Krestovnikoff finds out where flies go to in winter.
3/6 Clare joins writer and storyteller Anna Maria Murphy on a walk in Cornwall.
Raw sewage regularly pours into the River Thames. Alice Roberts looks for an answer.
8/8 James Aldred visits the Grove of Titans and climbs the world's tallest tree.
View all (10)