Griffonrook Run Jumping puzzle guide - Dulfy Reborn
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] :
Griffonrook Run (jumping puzzle) - Guild Wars 2 Wiki (GW2W)
Griffonrook Run - Guild Wars 2 Guide - IGN
GW2 Griffonrook Run jumping puzzle (Lornar's Pass) - YouTube