Pot fans join 420 smoke-out in San Fran

Updated April 21 2018 - 11:54am, first published 11:47am
An estimated 20,000 people flocked to San Francisco's 'Hippie Hill' for the annual 420 celebration.
An estimated 20,000 people flocked to San Francisco's 'Hippie Hill' for the annual 420 celebration.

Thousands of marijuana enthusiasts have simultaneously exhaled a giant cloud of smoke that rose above San Francisco's Golden Gate Park precisely at 4.20pm Friday, the annual April 20 high holiday.