Secret Temple of Tikal Lev 102 instance

I have a quest for this, Last Act part II, and I have entered it before, but left it as I was too weak, but when returning to it now I can't find how I enter it again. I used the codex to get to the entrance and find a portal there called Chaos Portal Rift, I am too strong for this and don't want to enter , but there is no option or entrance to the secret temple of Tikal.

It's ok, i think I worked it out, had to change the instance level to normal