Get stuck into exploring, and find out more about the world's amazing biomes, in these expedition diaries.
Simon is flying to the island of Borneo in the South China Sea. He plans to travel by boat and plane, and trek through one of the world's oldest rainforests to find orangutans in their natural equitorial habitat. He'll be sketching some of the island's 1,000s of species of tree, mammal and bird along the way.