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.

In Pembrokeshire, Jules Hudson joins Sea Trust Wales to help photograph porpoise as part of vital conservation work and gets hands-on with the Recycle Mor project. On the North Tyneside coast, Helen Skelton takes the plunge at Tynemouth Long Sands, which is fast becoming the North-East's surfing hotspot. JB Gill traces the journey of Norfolk-grown mustard from farm to factory on the Norfolk coast.

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.