Edakkal cave is located 28 kilometers from Kalpetta and is much closer to Ambalavayal. This cave is not a cave in real sense; rather it’s a cleft about 96 ft long and 22ft wide in the rock. It is a fissure made by a corner of rock chopped off from the main body due to some natural causes. The depth of the cleft and the fissure is 30ft. The fact that in the other section of the large cleft, a huge rock weighing several tonnes has fallen forming a roof over large part of it, gives it a unique look of a cave to an ordinary observer.
There are some attractive carvings of human and animal figures, symbols etc which shows of the habitation of highly civilized people of pre-historic age. This has inspired the historians and archaeologists to rewrite the history of Wayanad and see them in a different light. The caves contain drawings that range over periods from as early as 5000 BC to 1000 BC. The youngest group of paintings have been in the news for a possible connection to the Indus Valley Civilization. The finding, made in September 2009, indicates that the Harappan civilization was active in the region.