Shetland: Scotland's Wondrous Isles

The journey begins on the tiny island of Noss, with wardens Jen and Sally. They are the only residents and live a truly off-grid existence with no mains water, electricity or gas. They even grow their own food in case they become stranded by weather.

Lifelong crofter Pearl Young prepares for the harvest festival in the church she got married in, and visits Shetland's first commercial oyster farm and the islands' only wildlife sanctuary.

Viking outfits and a replica galley ship are among the requirements for the Scalloway Fire Festival celebrating Shetlanders' heritage; a pod of orcas are spotted.

Owing to its expansive coastline, Shetland loves having a race in a yoal, a traditional boat with links to the Vikings. The skipper of one such craft is preparing for the last race of the season.

On the second-largest island in Shetland, Yell, locals gear up for their annual show. Vegetable grower John hopes to win the battle of the heavyweights with his huge pumpkin.