Kalsubai is the highest mountain of the Sahyadris in India.

To reach the summit there are various trekking routes and animal tracks. The main route starts from the village of Bari which is about 6 km from Bhandardara . To reach Bari, one has to travel to Igatpuri on the Mumbai Nasik route. From Igatpuri take the early morning train to Pune and alight at Bari.

It usually takes three hours to reach the top from Bari. Soon after leaving Bari, you come across a stream. Within a few minutes of crossing the stream, you come to a temple. The route from behind this temple takes you straight to the summit. There are three iron ladders along this route. There is a well near the last iron ladder as one approaches the top but the water is not potable. The rest of the route is without water, so it is best to fill water bottles in Bari. It is an easy hike, but parts of it are quite steep in places.

At the summit is a small temple, which can seat just three people. The vastly spread out backwaters of Bhandardara attracts ones attention from the top. To the north of the mountain range forts such as Ramsej, Achala, Ahivant, Saptashrungi, Markandya, Dhodap, Rawlya,Jawlya and Koldher can be seen. To the east one can spot Aundh, Vishramgad, Alang, Madan, Kulang , Matheran and Harishchandragad. There has been massive deforestation on the mountain.