GW2 GriffonRook Run Jumping Puzzle Speed Run EZ | Lornars Pass - YouTube
Played on and off casually for years, 100% solo,recently popped my dungeon cherry, things were looking up until i stumbled across players running Griffonrook run and joined in [ I wasn't prepared] :
Jumping puzzle - Guild Wars 2 Wiki (GW2W)
Griffonrook Run Jumping puzzle guide - Dulfy Reborn