Katraj to Sinhagad or as we call it “K2S” is a popular night trek for professional trekkers, amateurs and newbie’s. The route starts from the Katraj Tunnel Top (Old), travels through a series of mountains and hills (more than 15) and approximately (16kms.) which leads to the destination the Top of Sinhagad Fort. It is definitely a trek which will test your physical fitness, stamina and endurance. The trek ends at Sinhagad.