The Baldwin Hills Scenic Overlook and Santa Monica Stairs have cult followings of free outdoor fitness enthusiasts for good reason — the latter even has its own dedicated Facebook page! There's nothing like a steep set of stairs to get you huffing and puffing, and boost up that booty in no time flat (or not so flat, ha!).

Baldwin Hills Scenic Overlook, 6300 Hetzler Road (near Jefferson Boulevard); 310-558-5547.

The Santa Monica Stairs, 4th Street & Adelaide Drive (near San Vicente Boulevard).

Photo: Via Baldwin Hills Scenic Overlook