https://www.cbc.ca/player/play/video/9.6516296
They marched over the Cambie_Bridge, which used to have 6 lanes. Unfortunately, the bridge wasn't designed to have wide sidewalks & bike lanes on both sides.
https://bc.ctvnews.ca/climate-protesters-to-march-through-downtown-vancouver-on-friday-1.7045835
https://dailyhive.com/vancouver/climate-protest-shut-down-cambie-bridge