Stunning views of San Francisco Bay loom through the windows of this climbing-plus-all-in-one gym and yoga studio. The scenery surrounding this hangar off Crissy Field is just one of the reasons this spot is so remarkable. Climbing builds long, lean muscles, while yoga stretches them — so this combo packs a double whammy. Towering walls are staggered throughout the open layout, and teem with climbers of all levels and ages. Classes are held daily, starting with Belay Lessons and Climbing 101. The gym requires that you pass a belay test before climbing solo. After a good climb, hit the mat. Planet Granite's yoga teachers and classes are top-notch — which is often hard to find at a gym with so many options. Yoga styles include Power Yoga and Vinyasa Flow.