First broadcast: on BBC Radio Wales MWLatest broadcast: on BBC Radio Wales FM
The trek to Nepal's Everest base camp attracts thousands each year. Dr Llion Iwan explores the impact of trekking on the economy, environment and culture of the Sherpa people.
First broadcast: on BBC Radio Wales MWLatest broadcast: on BBC Radio Wales FM
On the sixtieth anniversary of the first ascent of Everest, mountaineer Dr Llion Iwan explores two centuries of links between Wales and the highest mountain in the world.
First broadcast: on BBC Radio Wales MWLatest broadcast: on BBC Radio Wales FM
A look at Snowdonia, the natural training ground for climbers preparing to tackle Everest. Plus, Dr Llion Iwan, Eric Jones and Stephen Edwards travel to Nepal.