Video: 2015 brought a beautiful day for 4/20 at the Vancouver Art Gallery

An estimated 20,000 people joined yesterday’s 4/20 celebration at the Vancouver Art Gallery.

Even before noon, it was clear festivities had been well under way for hours. Marijuana smoke filled the air and a huge selection of smoking accessories were on display for the annual event that's half protest and half party.

Enjoy a sample of what took place with the video above.