The best time for river rafting in Kosi river is from July to First Week of November. Other adventure water sports like fishing, angling and rappelling are also organized on the river. River Rafting is a spine-tingling sport and the water of Kosi River in Corbett offers just that. This is a must have experience that involves often taking on the rock-studded rapids. However, river rafting in Corbett is a seasonal water activity; as it can only be enjoyed during the monsoon season, on a condition that there has not been a heavy downpour. Kosi River, which flanks the national park offers an excellent rafting experience for beginners and professionals as well. The rapids here, are that of grade II and III. The best time for river rafting in Kosi River is between July and First Week of November. Apart from river rafting one can partake activities like wildlife safari in Jhirna and Sitabani buffer zone, bird watching, fishing and angling, bridge slithering, and rappelling.