In this episode Martin travels to the Tiwi Islands, swims with a whale shark, and visits the Houtman Abrolhos, a string of over 100 little islands. Martin Clunes also samples life on Rottnest Island, which has long been a playground retreat for mainland visitors.
Southern Thailand is the Thailand we think we all know. It is a place of both spectacular natural beauty and of wild parties, but behind this well-known image is also a place of unexpected surprise, where spirituality pervades every bit of life. For the animals that live here, this is natural wonderland.
Joanna travels the length of India, including footage of her encounters with the flower-sellers of Madurai, before taking?us back to Uzbekistan, where she reveals some gory tales of the country's history and discovers the secrets of gem-making.
The first leg of his journey begins in Istanbul, from which he travels along the Aegean coast to the hostile border with Syria. He meets refugees trying to start a new life and a billionaire taking advantage of a property boom. He moves on into the Taurus Mountains and the Black Sea Coast, and visits a community trying to keep an ancient language alive.
The fourth leg of the broadcaster's journey takes him from Oman to the Maldives. He starts in the Strait of Hormuz, where oil from the Gulf is shipped through the narrow channel, then moves on to Mumbai, the ocean's biggest port. In the Maldives, Simon finds arguably the most beautiful collection of tropical coral islands in the world - but the fragile underwater environment is a barometer for the changing nature of the sea, as he witnesses how bleaching has damaged the coral and one entire island has been manufactured as a landfill dump to deal with the problem of rubbish.