Silent Valley National Park, located in the Palakkad district of Kerala, is a favorite with nature lovers, wildlife enthusiasts and travelers alike. The park is a UNESCO World Heritage Site. The park is home to tigers, elephants, leopards, snakes, lion-tailed macaques and the Malabar Giant squirrel. At Silent Valley National Park, there are many eco-tourism packages, such as trekking and camping. The best time to visit the national park is from December to April.