Where is the east temple?

I'm supposed to visit the east temple, and now it's chapter 2. I've already dispatched the treasure hunters to the temple and the bandit fighter guy says it's open now, but I don't know where it is for some reason.

Have I already found it, or is it on the very east of the map or something?

It's underneath the big mountain in the east. The west side of the mountain has 3 levels. Swamp level at the bottom, temple level in the middle, and the path through the mountain on the top. The entrance is from the south, but you can jump off the cliff (if you're careful) in the north as well.