Chasind Trail Signs

Walkthrough
Open a chest in the campsite in the korcari wilds : it adds something about Chasind Markers in your codex. Read it. 1) Now open your map. 2) Check for the cross, go there. 3) Press TAB to see a "Chasind Marker" text ingame. 4) Try to activate it. If you can't, sidestep, and try again. 5) Repeat step 1) to 4) until it activates the quest (I think there's 4 markers) 6) Go loot the Chasind Cache.

Happy looting ^^

Result
You find some items in the cache.