Adventure sports involve activities which are unusual, risky and exciting as well. An adventure sport is a bold undertaking which involve hazardous (dangerous) action and whose outcome is uncertain. Adventure sports comprise of a very wide range of activities. Mountaineering, rock climbing, trekking, skiing, river rafting,kayaking,canoeing,sailing,scuba diving etc. are some popular adventure sports. Adventure sports are undertaken at various places depending on the nature. of the topography and weather conditions. Most of the adventure sports are undertaken in hilly and mountain areas. On snow covered mountains, it is possible to carry out activities like skiing and sledging. Hang gliding is a very popular adventure sport. In this sport, one pilots a flexible wing aircraft by shifting one's weight on to it. Paragliding is another adventure sport. Its sites are located in Lahaul and Spiti, Solan and Billing in Himachal Pradesh. Hot air ballooning is fast becoming a popular adventure sport in India. In this sport one rises to high altitudes and sails across the sky in a basket hanging from a giant nylon balloon which is filled with hot air. Rock climbing is carried out in the western Ghats and Aravalli hills near Delhi. Some water sports like kayaking, sailing, surfing, yatching are practised off the coast of Gujarat, Goa and Kerala. Bird watching,camping and wildlife safaris attract a number of tourists from abroad. With liberalisation adventure sports are becoming popular.