4/20 was 'canceled' again in S.F., but pot enthusiasts light up in a low-key way FacebookTwitterEmail 1of9 Andrew Kaufman of 710 Labs prepares to consume marijuana during the annual observance of 4/20 for cannabis consumption at Mission Dolores Park in San Francisco, California Tuesday, April 20, 2021.Stephen Lam / The ChronicleShow MoreShow Less 2of9 Maximilian Soares prepares to smoke marijuana from a water bong during the annual observance of 4/20 for cannabis consumption in San Francisco, California Tuesday, April 20, 2021.Stephen Lam / The ChronicleShow MoreShow Less 3of9 Ernie Gonzales exhales while consuming marijuana during the annual observance of 4/20 for cannabis consumption at Mission Dolores Park in San Francisco, California Tuesday, April 20, 2021.Stephen Lam / The ChronicleShow MoreShow Less