For this grand tour, Paul Murton is exploring the Isle of Mull and its satellite islands to discover why they have become boltholes from the hustle and bustle of the modern world.

Beginning his journey on the tidal island of Erraid, which inspired famous Scottish writer Robert Louis Stevenson, Paul is then island-hopping to beautiful Ulva, the final resting place of Lachlan MacQuarrie, one of the first governors of New South Wales. MacQuarrie is known as the father of Australia, but Ulva is where this celebrated Scot was born and it is where he chose to be buried.

Leaving peaceful Ulva behind, Paul heads to explore Mull itself and is given a whistle-stop tour of the island by rally driver Louise Thomas, who regularly competes in the world-famous Mull Rally.

After seeing Mull at breakneck speed, it's time for some tranquillity and Paul travels to the mysterious little island of Inch Kenneth. This is where some of the earliest kings of Scotland are buried, but in more recent times Inch Kenneth was owned by the aristocratic and eccentric English family, the Mitfords, and Paul discovers the island has a dark secret. This is where Unity Mitford, who was a Nazi sympathiser, was hidden by her family when, distraught at the news that Britain had gone to war with her beloved Germany, she shot herself. The badly injured Unity was taken to Inch Kenneth to recuperate and hide from the world. To raise his spirits Paul heads to his final destination, the beautiful and remote Treshnish Islands, where he experiences a spot of puffin therapy.

For this grand tour, Paul Murton is travelling by puffer to explore a little-known string of islands just off the west coast near Oban. Paul's first landfall is the island of Kerrera, which Paul discovers played a hugely important role during the Second World War as a base for the RAF's Seaplan Squadron. It was from here that the enormous Sunderland seaplanes took off to give air cover to vulnerable convoys during the Battle of the Atlantic. Leaving Kerrera behind, Paul hops back to the mainland and heads by road to cross the famous 'Bridge over the Atlantic' to Seil Island and then by ferry onto Easdale. For nearly 200 years, Easdale and the neighbouring islands of Luing and Belnahua produced slate to help build Britain's empire. Tragically, a terrible storm in 1881 flooded the quarries with seawater and put an end to the slate industry here, but Paul discovers that Easdale itself remains little changed, with its whitewashed cottages and a vibrant, though small, community. Paul's last destination on this grand tour is Eileach an Naoimh, one of the Garvallach islands, and home to the oldest Christian burial site in Scotland, which is believed to be the final resting place of Saint Columba's mother.