Nag Devta Temple, an ancient temple dedicated to God of snakes, is situated on the Cart Mackenzie Road. Located 6 km from the city centre, the temple is frequently visited by devotees as well as tourists. Every year, the temple is decorated beautifully on the occasion of Nag Panchmi. Devotees throng the destination in huge numbers to witness the rituals, performed on a huge scale in the temple. One can also witness beautiful views of Doon valley and Mussoorie town.