Join us on this extraordinary trekking adventure through Yosemite National Park, a massive wilderness area straddling the Sierra Nevada Mountains – The backbone of California, cresting in magnificent 4400 metre granite peaks. Yosemite is famous not only for its 1000 metre deep valley, flanked by some of Earth’s tallest waterfalls but also for its superb alpine wildlife/scenery and groves containing some of the world’s oldest and largest trees. Since 1864 the park has been protected by legislation and more recently designated for its significance as a UNESCO World Heritage Site.