Idukki is the most beautiful district of Kerala. It is quite huge and covered with the best of the fauna and flora. Idukki reservoir is one of the wonders and Anjuruli tunnel lies on a corner of this reservoir. It's a tunnel which brings water from the small dam another side of the tunnel to Idukki reservoir, it's 5.5kms in length. The roads leading to the tunnel are accessible by own vehicles. It's still unexplored and 3 Kms from Kattapana town. It's a favourite destination for the film fraternity and few scenes of popular movies are shot here. There are a few local refreshment shops around this place. Visited during the month of May. Not sure about the accessibility to the tunnel once the rain starts. Peaceful and serene, no many tourists around.