DENVER (CBS4) – Pro-marijuana advocates on Monday gathered at Denver’s Lincoln Park across from the state Capitol for 4/20, the unofficial pot holiday.

CBS4 captured time lapse footage leading up to 4:20 p.m. In the video smoke can be seen rising from the crowd after the designated time.

The day is for pro-pot political action and the traditional smoke out. The 4/20 celebrations started over the weekend and continued through Monday, April 20.

There were several events over the weekend including a festival that’s become an annual tradition, the Cannabis Cup, where pot-based businesses set up booths to sell their products.

What was different this year at the Cannabis Cup at the Denver Mart was there were no samples or sales. But that didn’t seem to put a damper on the crowd.

PHOTO GALLERIES: 4/20 Rally & Smokeout In Downtown Denver | Denver Cannabis Cup On 4/20

“We have a lot of California companies here as well, and we have a lot of companies from Washington. If you go walk around, everybody is having a good time and there’s a lot of cannabis being smoked. It’s a celebration,” said Dan Skye, editor of High Times magazine.

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Despite the smokeout at the park, it’s still illegal to use marijuana in public or drive high.

During the three days of the 4/20 events Denver police say they issued 243 citations, 196 were marijuana-related citations.

Denver Police also tweeted out a reminder to those partaking in the pot holiday.

🎶 We see you rollin, but we ain't hatin’ 🎶 HAHA… Seriously though, #Denver, please remember to #ConsumeResponsibly this 4/20 weekend. — Denver Police Dept. (@DenverPolice) April 20, 2015

RELATED: Safe Pot Use Is The Message During 4/20 Marijuana Holiday

The Colorado State Patrol also reminded drivers that driving high is illegal and will result in a DUI.

It's okay to roll with your buds at home. We don't want to blaze the message away so we will be blunt: DON'T DRIVE HIGH. #420 — CSP Public Affairs (@CSP_News) April 20, 2015

Dozens gathered in front of the state Capitol where Colorado’s ban on public consumption of pot was flaunted, as it is each year on April 20. It was actually billed as a political rally to free people in jail on marijuana charges from before legalization, among other topics.