Limestone cave
A limestone cave or cavern is a natural cavity that is formed underneath the Earth's surface that can range from a few meters to many kilometers in length and depth. Most of the world's caves, including those at the Cradle of Humankind, are formed in porous limestone. You can easily get a boat at the Nilambur jetty, which will take you to the famous caves. On the way, you can admire scenic coastline covered with mangrove forests and you even pass through mangrove-covered canals making the ride more exciting. Once you reach the wooden jetty at Nayadera you will have to walk down for about 1.2kms to view this beauty of nature. The walls of caves here are covered with massive formations dangling from the ceiling like chandeliers. The water is constantly dripping from the ceiling making the stalactites and stalagmites shine and glow. The sad part of this site is that people visiting the caves are destroying these wonders of nature by littering and signing names on the ancient formations.