The Cactus to Clouds hike is epic. It was rated one of the hardest day hikes in the world by Backpack Magazine. You start in downtown Palm Springs and climb over 10,000 feet to the summit of Mt San Jacinto, with a large stretch on the treacherous Skyline Trail. The Cactus to Clouds hike should only be attempted by the very experienced and very fit hiker, and only under the right conditions. This guide gives you all the info you need to do this incredible hike safely.