Believed to be the abode of sage Agasthya, Agasthyakoodam (20 km from the city) at a height of 1890mts above sea level is the second highest peak in Kerala.  A part of the Sahyadri range of mountains, the forests of Agasthyakoodam is rich in rare medicinal herbs and plant, and hued orchids. The medicinal herbs found at Agasthyakoodam are more than 2000 in number. 

Animals like elephants, tigers, leopard, wild boar, sloth bear, jungle cat and spotted deer can also be seen in the forests. In 1992, an area covering around 23 sq kms was established as Agasthya Vanam Biological Park. The intention was to restore the degraded forests and to use it for educational purpose. A trekker's delight, December to April is the best time for trekking. 

Forest pass has to be obtained from the 
Wildlife Warden, 
Forest Department, 
PTP Nagar, Thiruvananthapuram.