In 1985 the park was declared a World Heritage Site. Geography Huascarán National Park protects the Cordillera Blanca, which is the world's highest tropical mountain range. Located in the central Peruvian Andes, the park's 340,000 hectares cover an elevational range from around 2,500 m to the several snow-capped peaks above 6,000 m. Among those peaks are Huascarán (Peru's highest at 6,768 m), Huandoy, Copa, Huantsán and many others. Other geographical features inside the park include: U-shaped valleys, 660 tropical glaciers (the largest glaciated area in the tropics), 300 glacial lakes and high plateaus intersected by ravines with torrential creeks. Climate The climate in the park has two well defined seasons: a rainy season from December to March and a dry season from April to November. During the rainy season thunderstorms are frequent and the fields and mountain slopes are covered in many shades of green; however, the dry season brings sunshine almost every day and cloudless but cold nights. Daily temperatures in the rainy season can go from a maximum of to a minimum of ; while in the dry season the maximum can be and the minimum . Ecology Being the highest tropical mountain range in the world, the Cordillera Blanca boasts a variety of climates from subalpine to alpine and tundra. The valleys and mountain slopes are covered with scattered high Andean forests and puna grassland. Fauna More than 120 bird species have been reported in this area including the Andean condor, the torrent duck, the puna tinamou, the brown pintail, the Andean crested duck, the giant hummingbird, the yanavico, the white-tufted grebe, the giant coot, the chiguanco thrush and the Andean gull. More than ten species of mammals have been observed in the park, several of them endangered, including the colocolo, the Andean mountain cat, the spectacled bear, the taruca deer, the vicuña, the white-tailed deer, the puma, the northern viscacha, the long-tailed weasel, the hog-nosed skunk and the Andean fox. Flora Some 779 plant species have been identified inside the park, the queen of the Andes (Puya raimondii) being one of the most representative and an object of conservation. Other plant species present in the park are: Polylepis racemosa, Escallonia resinosa, Alnus acuminata, Senna birostris, Vallea stipularis, Lupinus spp., Vaccinium floribundum, Calamagrostis vicunarum, Festuca dolichophylla, Jarava ichu, Azorella spp., etc. Activities Visitors to the park can enjoy activities such as hiking, wildlife watching, mountain biking, skiing,