Fodor's Expert Review Sky's the Limit Observatory & Nature Center

Run by a dedicated, local nonprofit, this volunteer-staffed 15-acre park near the northern entrance to Joshua Tree National Park educates visitors on the region's celestial and terrestrial attributes. It has an observatory dome with a 14-inch telescope, nature trails that feature desert plants, a meditation garden, numerous sculptures, and an orrery (a 20 billion–to-1 scaled model of the solar system). The campus is always open for walks or stargazing with your own equipment, but the big dome and telescope are only available during the free Night Sky Programs, which are held once a month on the Saturday night nearest the new moon. Programs usually start an hour after sunset and last two hours. The observatory also hosts an annual Night Sky Festival.