Locked gate in jungle?

I went into there tons of times and I couldn't get the gate open that is at the pool above the falls.  The gate was locked and I hovered over the locked gate, it said culture not high enough to access this gate.  That is the only gate that is tied to the culture skill the rest are just random.  I spent 100 vacations trying to figure out the gate system it wasn't until I had a higher culture level the gate would unlock.  I don't want to say what is in it because that would be a spoiler but the place is lovely and romantic.

Edit: I was able to get all gates open except that gate.  I went into the area and hovered over the locked gate, tooltip read, skill not high enough to access gate.  I had level 9 and 10 archeologist, so I was wondering why it said skill not high enough to access gate.  I got to think about the culture skill.  As soon as I raised my culture skill I talked to a local, did you find the secret place past the pool its quite romantic.  I am not one hundred percent sure if the words are exactly right since I have not been there for a while, because DU seems to not allow rotational play for some reason, and won't let you go on vacation in middle of term.  The fact holidays don't work in DU kinda really makes me angry.  Most schools have a break between classes.