Guild Wars 2

Thanks everyone for your input thoughts and help in the end this one did the trick:
https://www.youtube.com/watch?v=V2sIhMmPB6w

Thanks tried that and it is close to 10 secs but I don’t get the credit for it so guess its not that

Tried Rata Sun, no luck I did hit the ledge quite quickly

Crafting the pre Colossus and one requirement is a 10 second fall,

Hint: Coat yourself with your Mystic Chromatic Ooze and fall for 10 seconds without touching the ground.

It appears in must be Tyria place and running out of ideas, any help would be appreciated especially from someone who has done it.

Thanks