Broken Graverobber's tunnel (No Better Than Buzzards in Azwan)

[DemonicIntegrity]

I'm new to maplestory and I've been having fun but in Azwan I'm having some issues with the main questline.
Specifically in No Better Than Buzzards I'm suppose to find this hidden tunnel. The navigation would initially point me into the obelisk and I would be able to go inside. (I don't think I'm suppose to be able to at this point considering a mission right before this was about how I can't get through it yet.)
The wiki says the tunnel is suppose to be in the Obelisk back alley, so when I forfeit the quest, restart it, and go back there, the navigation arrow will point to a specific spot on the ground but there's nothing there. Nothing's clickable. Am I stuck or am I missing something??

[oama]

Do u find the result? I get the same question and find the router in the right door and just go right there's a hidden door in the right down corner.

[PR0S0TSKY]

i have the same problem. any result?

[NoNeD]

its in the arena where you first get the quest dont go into the temple but to the other end of the map and go and you will see a arrow pointing down and you can down and jump to the small cave