Inside the caves are pictorial writings believed to date to at least 6,000 BCE,from the Neolithic man, indicating the presence of a prehistoric civilization or settlement in this region. The Stone Age carvings of Edakkal are rare and are the only known examples from South India.Source – WikiPedia
You need to walk up to the top, so it would be best to start early.
Timing is 09:30 am to 04:30pm
Entry fees is INR 30 per person. For Camera it is INR 50 and for Video camera it is INR 200
Trekking distance is about 1km, 360 steps to be climbed. You climb a certain distance then you reach a place where tickets are issued and sent in slots of 30 people.
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Best time to Visit
Best time to visit would be between October and March as the temperature would be low. Avoid going there during rainy seasonsP
Suggested Reading – Places to visit in Srirangapatna, Mysore
Images of Edakkal Caves
Video of Edakkal Caves Trekking
Important Things to Note
Beware of Monkeys – If you buy something eat or you are carrying bags with eatable, then it is sure that you are going to lose it, some monkey would snatch it from you. The best is to give it rather than try to fight with monkeys.
Carry water and a good cap to protect from Sun
A good place to visit, you should be healthy enough to climb all the steep 300+ steps.