My family of four had an incredible experience doing the challenge course at Captain Zipline. Tucked in a stunning canyon along the Arkansas River just downstream of Salida, the challenge course has hundreds of elements, more than we could cover in a morning tour. My kids (12 & 14) loved it and our guide Derek was great with the whole group. The elements are really creative and challenging, but you can choose your level of adventure. The elements are all graded by difficulty, all the way up to the super hard, double black diamond route called "Rattlesnake". The whole operation is very professional. I have been to similar attractions all around the world and this is easily the best course of its kind I have ever seen.