Ray follows the Frankland River into the heart of Walpole Forest - two hundred square kilometres of wooded wilderness in Western Australia. The forest is 65 million years old, and has always provided food and shelter for aboriginal people. Ray is seeking out giant trees, and the creatures that live among them. He starts out his journey by canoe and meets Gary Muir, a local guide and conservationist. Ray learns from Gary that the river was once used by loggers to transport jarrah wood, which is so hard it was used as cobbles for London streets in Victorian times. Ray strikes away from the river to look for giant tingle trees, and meets some well camouflaged geckos along the way. Some tingles can be 24 metres in girth, and they grow alongside karri trees, which are some of the world's tallest!