Fortnite may have rocket-riding, but now PUBG has its own answer in the form of *checks notes* smoke grenade-riding. Wait, what?
Reddit user kowzzzz was among the first to discover the strange new surfboard when experimenting on a PUBG test server. The video posted by the user shows it's possible to throw a smoke grenade over a cliff and ride it without taking any damage. At least, until PUBG Corp decide to fix the bug.
According to kowzzzz's comments, the video was relatively easy to make, and it only took two attempts to get the angle right. Apparently, the key to smoke grenade riding is to throw the grenade "straight up in the air" on a "surface that is slightly slanted". It's also really easy - kowzzzz says you don't even have to jump.