The Hot Yoga Center, Redondo Beach

It's 105 degrees, but the humidity level is perfect and the air is pure. It's not a freak summer day—it's the spacious studio of The Hot Yoga Center. There, yoga students of all levels can perfect their hatha and power yoga skills on the cushioned, non-slippery floor, breathing in the regularly purified air as the balmy temperatures help them achieve deeper stretches and more pliable butter sculptures during 60- and 90-minute classes. For a faster paced class that's geared toward strengthening the core, students can try Novo yoga, whose 40 postures and two breathing exercises tone and stretch the body during 70-minute sessions. Instructors lower the heat for yin yoga classes, allowing students to slow down racing thoughts for an introspective hour-long session.