The Amnoon Oasis mistery zone??

In Amnoon Oasis there are 2 zones ,1 to the south and one to the north.Well the one to the north is behind a big gate.So how do i get past that gate to go out that zone.This city is not a mission city and Ive done all the quest from it On the big map<M>its like cloudy meaning Ive not been in that part of the world yet

i do beleive that's a battle arena(pvp area). if you talk to the "arena gaurd" he will take u to that zone. im not sure the fine details but i think every city has this except for the city after LA.

please if im wrong correct me.

That's one of competition arenas. You can only start playing from the arena island west to the guild hall which you can go from LA's port. There are 4 arenas for random competition. One is on the arena island, one is north to the Denvas , one is south of Ember Light camp and one is north of Amnoon oasis.

ty for the clarification

why wont they open The Craig?

LA has one, talk to the guy at the docks , next to the sign, he takes you to the island next to the guild hall one

If I recall, the Craig is the pvp zone on the fire islands. This arena, along with the LA, Oasis, and Henge arenas are all part of the competition arenas that are accesable from LA. Back just after the game was released ANet decided to merge these arenas into a single arena that randomly picks one of the four for each match. The teams arena works the same way, but adds the droknar arena into the mix.