Welcome to Parque Nacional Natural Los Nevados
Thirty-seven rivers are born here, providing water to 3.5 million people in four departments. The glaciers in the park have been receding, however, and research is under way to measure the impact on the environment.
Highlights include visits to the beautiful Laguna del Otún, and the ascents of the three snow-capped volcanoes: Nevado del Ruiz, Nevado de Santa Isabel and Nevado del Tolima.
The best months to see snow in Los Nevados are October and November and from March to May. Outside of those times you're more likely to get the dry, windy conditions favorable to trekking and clear views.