Simon Reeve travels through glorious Cornwall as the county emerges from lockdown and investigates what the future holds for one of Britain's favourite tourist destinations.
This leg takes Ade across central Africa, from the coast of Gabon, through the giant Democratic Republic of Congo, and on to Uganda. He starts off the coast of Gabon looking for humpback whales. It is one of Africa's best spots for seeing them, thanks to Gabon's vast marine sanctuaries. The country is an eco-paradise, not just in the water, but on land as well where 80% of it is forested. But the country has recently introduced one of the most destructive agri-businesses in the tropics - palm oil farming. Ade discovers how Gabon hopes to do it sustainably. The country has impressive environmental credentials, but on a tour of its divided capital Ade hears that some people are skeptical. One critic suggests it is a way for the country's autocratic ruler Ali Bongo Ondimba to curry favour with the international community. Next up is perhaps the most chaotic and corrupt country in Africa, the Democratic Republic of Congo. Ade discovers first-hand how everyone from the traffic police to the country's top politicians are on the take. He also spends time with some of Kinshasa's musicians and ‘sapeurs' – people who get kitted out in the finest haute couture in one of the poorest countries on the planet. In DRC's far east, he finds out what lies at the heart of the country's problems: a never-ending conflict amongst local militia, fuelled by foreign countries who want to get their hands on the DRC's vast resources. After going on a tank patrol with the UN, he meets Kibomango, a champion boxer who is helping to rehabilitate some of the country's 30,000 child soldiers. Travelling into one of the most famous national parks in the world, Virunga, Ade discovers that few areas of the country have been left unscarred by the violence. And the impact on the wildlife has been extreme, as Ade encounters some of the world's few remaining mountain gorillas. His final stop on this trip is Uganda where he meets Bobi Wine, one of Africa's most outspoken political campaigners. Bobi was recently arrested and beaten, and his driver killed, after his protests drew the attention of long-serving autocratic ruler Yoweri Museveni. Ade meets a defiant man who will not give up, no matter what threats are made on his life. He is part of a new generation of Africans who are fighting to take back control from the post-colonial leaders who have done so much to wreck the continent.
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.
The seasoned traveller explores the South American country, beginning in the north-east - where Europeans first landed and grew rich on the profits from sugar and tobacco plantations run with slave labour. In Sao Luis, Michael finds out about a ceremony based on a 200-year-old tale before heading to the coastal lagoons of the Lencois Maranhenses National Park. Journeying inland, he gets a glimpse of the fast-disappearing world of old-style cowboys known as vaqueiros, has his fortune read by a Candomble priest and learns to drum with the Olodum cultural collective.
James journeys through Japan's mountainous forests, marvels at its zen gardens and admires centuries-old bonsai, to explore the connections between Japanese culture and the natural environment. Travelling around Japan's stunning island geography, he examines how the country's two great religions, Shinto and Buddhism, helped shape a creative response to nature often very different to the West. But he also considers modern Japan's changing relationship to the natural world and travels to Naoshima Art Island to see how contemporary artists are finding new ways to engage with nature.
Taking a ferry across the Strait of Gibraltar, Simon's first stop is Ceuta, a Spanish exclave surrounded by Morocco. This is one of the few land borders between Africa and the European Union. Simon joins the Spanish border police who check engines and even dashboards for stowaways trying to reach Europe. Migrant and refugees attempting to cross Ceuta's fortress border have quadrupled in the last year. Undaunted by Morocco's failure to issue a filming permit, Simon crosses the border as a tourist, tracking down a group of young migrants hiding out in a forest close to Ceuta. They have travelled thousands of miles, crossing the Sahara to get this far, and now they are just a 20-foot, razor wire fence away from their European dream. Crossing the Med to Spain, one the busiest shipping lanes in the world, Simon discovers huge numbers of dolphins and even giant whales surviving by dodging the ferries, container ships and oil tankers. Travelling along the arid southern Spanish coast, Simon takes to air to witness the sea of plastic that form over a hundred square miles of greenhouses. It is where much of our supermarket fruit and veg are grown, but as Simon discovers it is a massive industry built on the back of a low paid, migrant workforce. Following in the footsteps of four million Brits who make the journey every year, Simon travels to the Costa Blanca and its most famous resort, Benidorm. Derided by many, Simon is surprised to learn that high-rise Benidorm is now being hailed by experts as a model of sustainable tourism. The Mediterranean region attracts a third of world tourism and visitor numbers are predicted to rise to half a billion a year by the end of the next decade. Simon travels to a western corner of Corsica, a nature reserve that must be one of the most heavily protected bits of sea on earth, and one of the few places where tourists are actively discouraged from visiting. Lying on the beach, hiking in the mountains and watersport activities are all banned. The park's manager shows Simon the results, taking him for a dive in the fishiest place in the Med. In a sea where over ninety percent of fish stocks are over exploited, it is a beacon of hope in what is otherwise an uncertain future for the Mediterranean.