Bhoothathankettu

Kothamangalam – Idamalayar Road, Kerala 686681
Phone: +91-4842367334

Bhoothathankettu is a dam and tourist spot in Kerala, India. It is situated outside the village of Pindimana, about 10 km away from the town of Kothamangalam and 50 km away from the main city of Kochi. The original natural dam has been supplemented by a modern dam impounding the Bhoothathankettu Reservoir (Thattekad Reservoir). During the Malayatoor pilgrim season, travelers use the roads through the forest.
Large blocks of unshaped stones are placed on both sides of the Periyar River to form the dam, making it look like a natural dam built by superhumans. The name Bhoothathan Kettu, means “monster fort”; past generations believed it was built by a Bhootham (monster).
Source : wikipedia 
Eye -pleasing sceneries, bird watching, adventure trekking, wild life photography, boating are the key attractions that draw tourists here.
Bhoothathankettu, a scenic dam site with boating facilities is situated in a vast virgin forest. A myth connected with the origin of this place says that this natural fortification of forests and hills was built by Bhoothams (spirit/ghosts) overnight. Hence the name Bhoothathankettu (fort of the spirits). Later, this natural topography helped in building a dam here. Lying close to Bhoothathankettu is the Salim Ali Bird Sanctuary at Thattekkad. Trekking through the forests here is an exhiliarating experience.
The two main irrigation projects of Ernakulam district – the Periyar Valley Irrigation Project and the Idamalayar, one of the biggest Hydro Electric projects are also located nearby.
A very popular picnic spot, the dam has a children’s park, a pedal boating centre and a restaurant.
Source : keralatourism.org 
https://www.youtube.com/watch?v=pRNaW11oovQ
https://www.youtube.com/watch?v=iphAiIE9CpE
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Entry : Rs.10/-per person