The stretch of Kelani river around Kitulgala is considered to be the best place for whitewater Rafting in Sri Lanka. The main rafting stretch is about 4km (2 miles) long and the rapids vary from grade 3 to 5 depending on rainfall. The best time to embark on a trip is from April to November when the water level is higher. A typical trip covers a range of major and minor rapids, and usually includes a swimming stop. Experienced rafters can arrange for longer and more challenging trips as well.