The Navach-chunai is a tarn situated on the eastern slope of central part of the rocky hillock. It is about one kilometer north of the Ezhadippattam, at a somewhat lower level than it. Reaching there requires a lot of rock-climbing and trekking and would need somebody to guide.
The pool takes its name from a naval-maram or jambu tree (Syzygium jambolanum) close by. Like the Talai-aruvisingam, tarn of Narttamalai (on the Mela-malai), this contains inside, a submerged rock-cut shrine. Stylistically it is a late Pandya temple (13th century AD). It contains a Siva lingam in the centre and a narrow passage to walk round. The water is occasionally baled out, and the lingam worshipped. This is
locally called the Jambunatha's cave.