In North Yorkshire, Helen descends 4500 feet into the UK's deepest mine. On the Kent coast, JB explores the strange beauty of Dungeness. And Jules visits Devon, setting sail from Salcombe.
The trio take up a variety of activities on land and sea - from photographing elusive marine mammal, the porpoise, to surfing at Tynemouth Long Sands.
In south-west Scotland, Helen Skelton heads off-road into the rolling hills of Bainloch Deer Park, home to over six hundred red, sika and fallow deer. Further north, Jules Hudson explores the dark history of HMP Peterhead - Scotland's own Alcatraz. JB Gill gets hands-on with a reconstruction of the Sutton Hoo ship on the Suffolk coast.
JB Gill heads to the Lincolnshire coast to join the Skegness Pier Angling Club during one of their friendly beach competitions. Under the watchful eye of veteran angler Charlie, JB gets a crash course in coastal fishing. In Cumbria, Helen Skelton meets some unlikely coastal heroes - vultures. And in Fife, Jules Hudson unearths Cold War secrets beneath quiet fields, exploring a declassified communications bunker.