Anza-Borrego Desert State Park
Anza-Borrego Desert State Park is a desert park in eastern San Diego County, California, certified as an International Dark Sky Park in 2018. Quiet hours run 10 p.m. to 6 a.m., and day visitors must leave by 10 p.m., so camp if you want to stay out late. Drones are prohibited; the visitor center at the west end of Palm Canyon Drive in Borrego Springs (760-767-4205) can tell you about current night programs.