From the vast terrain, sky-top mountains, crystal streams, and amazing wildlife, it is the world's gift to us. You can take one of the many trails already planed out for you, some taking only a couple of hours, others taking entire days, and quite worth the time. You can travel deep into the park, and hike mountains and valleys that are rarely bothered by human interaction. If you are a master climber, you can travel to Wonder Lake. From there you can take a touring expedition up the highest mountain in North America, Mount McKinley, rising over over 20 thousand feet into the skyline.