Ah, what it must feel like to propel oneself inside a giant see-through ball. (Well, actually, I wouldn’t know.) But friends who’ve gone “zorbing” love it. Rocksport is an outdoor adventure sports company—with its grounds at Camp Tikkling in Gurgaon—and they also operate hot air ballooning. If you like coming up against a wall, try the vertical rock-climbing expedition at Indian Mountaineering Foundation.