Antisana is Ecuador's fourth highest mountain. It is pretty remote and offers some of the most interesting climbing in Ecuador. Unlike the other big mountains there is no refuge and a base camp is needed.

Despite its spectacular appearance and the quality of the climbing, Antisana is rarely climbed. This is due to a combination of two factors. First, its moderate technical difficulty, there are no "walk-up" routes on the mountain which means that those who attempt Antisana must have glacier climbing skills. Second, the fact that access to the area around the mountain is restricted in order to protect the wildlife and environment.

The glaciers on Antisana are very active. Their configuration is complex and they are always in process of evolution. Our choice of route will depend on the conditions at the time of our climb. Most likely it will include a combination of moderately angled glacier travel and short, steep sections that require the use of the full range of snow techniques for intermediate terrain. During the last part of the climb we will have to route find. Special care has to be given to the bergschrund below the summit and to potential hidden crevasses.

From the summit there's a wonderful view at the north face of Cotopaxi and a remarkable vista across parts of the Amazon Basin. Summarising, the ascent of Antisana offers great adventure and high quality alpine climbing in a spectacular and seldom visited equatorial environment. The ascent normally takes seven hours and the descent three hours.