Mere blocks from the mob scene that Golden Gate Park becomes on any day when the temperature rises above 65 degrees lies another beautiful patch of land — all but hidden to the masses. Mountain Lake Park is 14 acres of unsullied beauty in the Inner Richmond, complete with tennis courts, a dog park, and Mountain Lake itself, one of the few remaining freshwater lakes in the city (where Spanish explorers supposedly found their rest before the city was a city). Other highlights include a basketball half-court that could've been designed by J.R.R. Tolkien and the beginning of a path that clever and dedicated explorers might find leads all the way to Baker Beach (with nary a car in sight). If your vision of a park is more about nature's serenity and less about jogging strollers and bad Pink Floyd covers, Mountain Lake Park has you covered.