This method of climbing is called a spam click climb.
Repoman46 (PB legend) was the first person I heard of using this technique and from there the fun really started😆so thanks Repo👍
You can climb most walls,fences and objects that are not square in position to the map.This is done by walking right up to the object facing square to it and spam clicking while pushing direction upwards.
Have a look at the video to see how Its done and where can be climbed.
