The naturalist enjoys an 11-mile walk in Exmoor along the South West Coast Path, regarded as one of the most beautiful such paths in the world. Starting at Porlock Weir, Kate heads to St Bueno's, a tiny parish church that seats just 33 worshippers - and which holds a dark past. She then heads inland to see the valley that inspired RD Blackmore's 1869 novel of outlaws and revenge, Lorna Doone. At Lynmouth, Kate rides the world's highest and steepest water-powered railway, before finishing her walk seemingly on top of the world in the Valley of Rocks.

On a 15-mile walk in North Yorkshire, Kate sets off from the picturesque settlement of Robin Hood's Bay, where archaeologist Maria explains how, in the 18th century, the fishing village's position made it an idea drop-off point for contraband shipped from Holland and France. From here, Kate heads south along the coast, meeting up with geologist Will, who reveals what dinosaur footprints can reveal about the creatures that once roamed the area. After arriving at her destination in Scarborough, Kate dons her wetsuit to join a group of swimmers braving the North Sea.

Starting in Dorset on Stonebarrow Hill, the naturalist walks a 13-mile stretch of the South West Coast Path. Her first stop is at Charmouth, a place well-known for fossil hunting, where local girl Mary Anning found an ichthyosaur in the early 19th century. At Lyme Regis, Kate discovers the lengths and costs engineers have gone to in order to protect the town, before visiting a local mill listed in the Doomsday Book. After a spell bird spotting in the Seaton Wetlands, Kate enjoys a tour of the area's limestone mines before making her way to Beer Point, which boasts wonderful views of the sea.

Kate walks an 11-mile stretch of the Suffolk coastline - one of the fastest eroding in Europe. She also learns about the ancient art of thatching, makes flavoured gin, goes foraging and visits one of the UK's largest freshwater reed beds.

The presenter walks a 13-mile stretch of Yorkshire coastline. Starting at the highest point along this coast, Kate heads down into the fishing village of Staithes, which was once home to one of north Yorkshire's largest fishing fleets. In Runswick Bay, she takes to the sea with the volunteers in the newest rescue boat. Kate then heads on to Whitby, which inspired Bram Stoker's Dracula after he stayed there in 1890.

Kate walks 12 miles of Suffolk's shingle coast, starting at Minsmere Nature Reserve, and later heads through the protected wetlands at Snape Maltings in a kayak. Her final destination is the 10-mile-long shingle spit at Orford Ness, a former military test site which is now a National Trust nature reserve.

The naturalist wanders along the shorelines of Britain. On Holyhead Island in north-west Wales, Kate discovers one of her favourite rare birds and Britain's longest breakwater - a 1.7-mile-long feat of Victorian engineering.

Kate's starting point is the picturesque village of Alnmouth, which was once a leading grain port in the 18th century and has become known for its scenery.

Kate walks a scenic route along Ayrshire's coast, the birthplace of poet Robert Burns.

Kate walks the hilly coastline that is home to two of north Wales's most popular tourist destinations - the walled town of Conwy, and the Victorian resort of Llandudno, once dubbed the Queen of Welsh resorts.

Starting on Yarmouth's wooden pier, Kate Humble's journey begins with a boat trip to the Needles, which her Victorian guidebook recommends as the best way to view these impressive chalk stacks

Kate follows the historic East Sussex coastline, beginning on the cliffs overlooking Hastings, a town associated with the Battle of 1066.

Kate follows the iconic white cliffs of Dover on a 15-mile walk of contrasts. Kate's walk begins above Folkestone Harbour at Martello Tower 3, built to defend against Napoleon.

On the Scottish Borders, Kate walks almost 15 miles from the historic fishing village of St Abbs to England's most northerly town, Berwick Upon Tweed. Her trek starts on St Abbs Head, from where she descends to St Abbs harbour, named after a Northumbrian Princess and Saint, Ebba, who was shipwrecked and founded a nearby monastery in the 7th century