Himachal Pradesh, Dec 22 (ANI): Tourists are thronging to Shimla in large numbers to enjoy white water rafting and hot water spring this winter. Tattapani, which is 55 kilometres away from Shimla, has become a favourite tourist destination owing to adventure sports and scenic beauty. One of the main attractions which is drawing tourists is the white water rafting in Sutlej river. The local travel agents confirm that there has been tourist influx during the winter season as people want to enjoy snowfall and other adventure activities.