The wild trees - Richard Preston

Hidden in unseen valleys of dense rainforest on the coast of California are the world's tallest and largest things - trees up to forty stories tall and as old as the Parthenon: the coastal redwoods. Mysterious and unexplored, few people know how to find them, and fewer still have climbed them to study their upper reaches and discover the wonders there. The Wild Trees is the astonishing story of the handful of wild tree climbers and amateur naturalists who are now working in the redwood canopy, exploring this enchanted and terrifically dangerous new world. The canopy is a mysterious place filled with hanging gardens of ferns, mosses and lichens, a massive system of aerial trunks that have fused to form walkways, where redwoods begin to grow on other redwoods, 300 feet in the air. The Wild Trees is a story of high adventure of the small band of friends, colleagues and lovers committed to finding the secrets hidden in the lost world of the tallest trees on earth.