Well-known for its exceptional beauty, Agasthyakoodam is the second highest peak and is a part of the Sahyadri mountain range. Situated at 1890mtrs above sea level, this region is known for the presence of wildlife, rare medicinal plants and birds. In 2016, UNESCO added Agashtyamala to its World Network of Biosphere Reserves. Bonacaud and Neyyar are part of Agasthyakoodam and are known for its tranquility. Trekking is one of the major attractions of Agasthyakoodam. Prior booking is required to trek to this charming destination. It takes 48 hours to complete the trekking and Agasthyakoodam trekking is one of the most demanded tour activities in Thiruvananthapuram.