Yellowstone National Park
With its dramatic peaks and pristine lakes, Yellowstone is an outdoor enthusiast's paradise, where multi-coloured pools swirl around hot springs, verdant forests weave past expansive meadows, and volatile geysers launch streams of steaming water toward the sky. There's no doubt whatsoever that the park is extraordinary, and while you traverse the park's 3000-plus square miles of mountains, canyons, geysers and waterfalls, be prepared to share the trails with its more permanent residents, like buffalo, elk and sometimes even grizzlies.