London now has its own branch of the Jivamukti Center, the New York institution with a cult following that includes Donna Karan and Sting. Founded in 1984, the Jivamukti method revolves around swift and vigorous movement between a series of poses. The London center offers private 90-minute lessons for $135 ($175 in your hotel room) and 95-minute group sessions for $22 a person. At 300 Kensal Rd.; 44-208/960-3999; www.jivamuktiyoga.co.uk.