Exploring Tory Island in Donegal, Ireland's most remote inhabited island, Papa Westray in Orkney, the Inner Hebridean island of Iona, and the tidal island of Hilbre located where the River Dee and Irish Sea meet in Merseyside and accessible on foot for a few hours at a time with the ebb and flow of the tide.

Exploring Rathlin Island on the north coast of Ireland, home to less than 150 people, the Outer Hebridean islands of Barra and Vatersay, Brownsea Island off the Dorset coast, which is renowned for its wildlife, and the Welsh island of Caldey, one of Britain's many sacred islands where monastic traditions still run strong.

The wildlife and community of Barra in the Outer Hebrides, home to the only airport in the world where a scheduled flight lands on a beach. The Scottish island of Cumbrae has a strong sense of community among the more than 1000 residents. Rutland Island, off the coast of County Donegal, was once home to a bustling herring industry. Although it's largely abandoned, and without a ferry service, islander families have returned and renovated their old homes on the 18th-century Duck Street. And in the English Channel, father and son Morgan and George show off Sark from the water.

Exploring some of the UK's smaller islands. On Alderney, retired teacher Suzy is happiest manning the Channel Islands' only working railway. Lundy off the north coast of Devon has been home to handyman Ian for just a year. At the other end of the British Isles, tiny Orkney island Papa Westray is a paradise for nesting seabirds. And in Wales, Johanna and her son Billy are maintaining their strong family connection to Caldey through their work.