There were no arrests during "420" celebrations in London's Victoria Park this year.
A smaller than usual crowd of about 60 people gathered to promote the use of marijuana.
London police vowed to crack down on anyone participating in illegal activities during the event.
Roughly 20 police officers were on hand to monitor the situation.
The term "420" is a code used to refer to the consumption of cannabis and the cannabis subculture.
Historically, revelers have gathered in London's Victoria Park on the 20th of April at 4:20 p.m. to smoke pot and protest Canadian marijuana laws.
