Thenmala has the history of stone-age civilization in Kollam district in Kerala, India. The first planned eco-tourism program of India was in Thenmala. Chenduruni Wildlife Sanctuary in Kulathupuzha Reserve Forest Area is in Thenmala. The largest irrigation project, the Kallada project, and Chenduruni Wildlife Sanctuary is situated here. Thenmala is situated in Punalur taluk. The main characteristics of Thenmala are dense vegetation and biodiversity. The topography in Thenmala is full of mountains, rivers, and streams. The attractions in Thenmala are the lush green forest park, adventure park, children’s park, butterfly safari, musical dancing fountain, boating, trekking, hiking, and night camp. The eco-tourism program work on levels like leisure zone, cultural zone, and adventure zone. The main aim of establishing the Deer Rehabilitation Centre in Thenmala is to protect the deer which is moving away from the forest. This center has a variety of Deer parks. Thenmala is a perfect place for vacation. The route Trivandrum, Nedumangad, Thenmala, is 72km. It is 220km from Kochi, 64km from Kollam, and 37km from Thenkashi in Tamil Nadu.