If you like amazing race you will love this! City Chase is held around the world. It is a 4-6 hour urban event, 2-person teams will run, walk and use public transit to navigate their way throughout the city, while calling family and friends for help, accessing the Internet, and even employing assistance of total strangers. Each team must complete the required checkpoints (which can consist of scavenger hunts, nestle tea plunges, eating live crickets, sign-language challenges, rock climbing and much more. The first ones to cross the finish line WINS!
I did this last year in Toronto and had a blast! (finished top 50, brrraaaaap!) There are two dates in Toronto this year, June 19th and August 14th. Check out their website for registration info. DO IT. NOW!!