Manhattan Beach Ca

Sheree Parnell arrived at the Sand Dune Park in Manhattan Beach, expecting to march up the popular 100-yard dune for what friends had told her was the ultimate cardiovascular workout. Instead, she found the dune closed Friday and bulldozers scooping up mounds of sand. The towering sand dune has been around since 1965, but only in the last few years have people from across Southern California flocked there for the kind of workout you can't get at a gym. Walking or running up the dune amid the shifting sand is a cardio exercise as well as a test of agility.