Yes, you're at the Yoga Institute, where trained instructors lead you through 27 different postures in a room heated to a balmy 110 degrees. This is Bikram's yoga, and may well be the most challenging workout you've ever had. The Institute's instructors are knowledgeable, friendly, informative, and well aware of everyone's limitations ("You can mess with the gods, but don't mess with your knees" is their mantra).

Grab a few towels and a big jug of water, and prepare yourself for 90 minutes of sweating, grunting, contorting, and the most exhilarating feeling any ground-based legal activity can possibly offer.