420 celebration on "Hippie Hill" in Golden Gate Park, San Francisco.
All types of paraphernalia was being sold during the 420 celebration on "Hippie Hill," in Golden Gate Park in San Francisco, Calif., on Friday, April 20, 2018. Hundreds participate in the first 420 celebration since Californian's passed Prop. 64, which legalized the recreational use of marijuana. (Laura A. Oda/Bay Area News Group)