BBC Earth på fredag – Tv-tablå 28 augusti

Adventurer Ben Fogle returns to the Pembrokeshire coast to catch up with Matthew and Charis Watkinson, and their two children.

As winter's chill grips the Arctic, the path forward will require trial and error.Living in the secluded state of Alaska means one wrong decision could cost you your life.

In Budapest Joanna explores the river by boat and rides a unique children's railway, as well as discovering the city's Jewish heritage.

The Reykjanes peninsula in Iceland hasn't seen any volcanic activity for over 1000 years, until now.One fateful evening the sky glows red; a hill erupts with a deluge of lava. Fagradasfjall volcano is born; five months later, the volcano shows no sign of stopping.

For the last leg, Paddy and Chris head to Switzerland to see if its cutting-edge treatments, medical science and health shortcuts can keep them younger for longer, inside and out.

Gregg Wallace visits a Manchester factory that churns out 6 million Jaffa Cakes every single day.

Joanna heads towards the Danube Delta, one of the last great wilderness areas remaining in Europe, full of birdlife including the majestic Pelican.At the mouth of the river, on Romania's Black Sea coast, Joanna bids farewell to the Danube and reflects on her amazing journey.

With spring in full effect across the Arctic, residents of Alaska must seize seasonal opportunities.Sue Aikens sets out to hunt small game but must be wary of her recent surgery.

Adventurer Ben Fogle journeys to the swamplands of Georgia to live with Colbert, a former city fat cat turned jungle Tarzan.

David Attenborough examines the chameleon's tongue and the giraffe's neck.

Volcano expert Chris Horsley returns to the Congo to investigate a potentially lethal threat to over two-million people.After a recent eruption, a huge 10-mile-long fracture has appeared in the ground. It runs directly from the slopes of Nyiragongo volcano down to lake Kivu.

For the last leg, Paddy and Chris head to Switzerland to see if its cutting-edge treatments, medical science and health shortcuts can keep them younger for longer, inside and out.

The icy adventures continue for the hardy characters living in rural Alaska.

The icy adventures continue for the hardy characters living in rural Alaska.

Ben Fogle returns to the Australian outback to revisit Barbara Walker, who has been living alone in a remote site for sixteen years.

As Lucy and her Indigenous team begin their unique 50-day journey into virgin Amazon rainforest, they can hear the whistling of the deadly bushmaster snake.

In this second programme, Simon focuses on some of the dodgiest and most dangerous situations he has found himself in while travelling the globe.

Ben retraces his epic journey back to India to revisit Steve Lall, an ex-fighter pilot who turned his back on Indian High Society for a simple life in the foothills of the Himalayas.

The icy adventures continue for the hardy characters living in rural Alaska.

The icy adventures continue for the hardy characters living in rural Alaska.

The natural world offers a constant source of calm and comfort.How do images of hypnotic starling murmurations or macaques relaxing in hot springs in Japan encourage us to slow down? How can we experience more being and less doing?

Ben Fogle returns to the Australian outback to revisit Barbara Walker, who has been living alone in a remote site for sixteen years.