The Adventurer's Guide to Britain

Naturalist Charlotte Uhlenbroek and TV presenter Gethin Jones undertake challenging activities available to the public as they explore nature's hidden wonders in stunning locations. They begin in Derbyshire's Peak District, where Gethin takes to the skies in a microlight for a bird's-eye view of the landscape, while Charlotte proves her mettle when she descends into a spooky underworld labyrinth.

Charlotte Uhlenbroek and Gethin Jones visit North Yorkshire to explore the famous crumbling coastline. Taking to the chilly North Sea, they kayak to a remote cove in search of fossils, before Charlotte forages for wild food along the shore and Gethin tackles the highest cliff on England's east coast.

Charlotte and Gethin set out to uncover a hidden Lake District that most of the National Park's visitors overlook. Gethin tries the new sport of wilderness fishing, while Charlotte canoes on Ullswater, the region's largest lake. Together they get a grandstand view of one of England's only herds of truly wild red deer, before taking a dip in a hilltop tarn.

A visit to the North Pennines sees Charlotte Uhlenbroek investigating the flora around Upper Teesdale's Cauldron Snout, which lays claim to being England's longest waterfall. Gethin Jones braves a terrifying crawl through a 240-year-old lead mine, and together they face the full force of the River Tees as they try a breathtaking white-water craze.

In this episode Charlotte Uhlenbroek and Gethin Jones explore the Pembrokeshire Coast National Park, an area renowned for its wildlife, caves and shipwrecks. Charlotte has an encounter with an inquisitive grey seal as she takes to the sea, while Gethin tries his hand at free-diving for spiny spider crabs. After a night under the stars, they both explore the famous smugglers' caves.

A visit to Exmoor sees Charlotte Uhlenbroek experiencing a once-in-a-lifetime encounter with the area's wild ponies, while Gethin Jones scales a 100-year-old oak tree as he gets to grips with a new adventure sport. Together they tread a terrifying path to discover a breathtaking view, and find themselves suspended 30ft in the air to listen to a creature of the night.