Michael Palin in the Philippines

Michael continues his adventure on the island of Palawan, where he explores the Puerto Princesa Subterranean River National Park, but discovers the environment is under serious threat from a huge nickel mine suspected of poisoning the area. He then flies to Cebu City, the oldest city in the Philippines, and visits its detention and rehabilitation centre, a large prison where he witnesses the dazzling, if bizarre, synchronised disco dance routine performed by hundreds of smiling inmates