Photo Op!

Since nobody has mentioned how to do this yet, once at the holiday grounds, make your way to:

/way 62.4 49.4

There will be 3 blue portals that will send you to another zone. Each 1 will give you credit for the zone in the achievement.

It is not necessary to open the chest and take pictures once you arrive, but you can if you want.

Does not seem to be an achievement for all zones, so once you complete 10 you are finished unless you want to get them all.

There is also a portal in each zone right where you spawn in that will take your back to the original portals.

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UPDATE: The portals did not change and have not since I made this post, I am unsure why they changed on day 1 (had nothing to do with daily reset). Can only assume you get 3 a week now. Sorry for the back and forth.

Good luck!

No idea when/how these portals are supposed to be reset, for me it showed Twilight Highlands, Uldum, and Mount Hyjal on Wednesday, and I still have them as of Thursday (both were around 5h after Daily reset times). Perhaps (bi)weekly?

Edit: Third day in a row, and still the same ones. Likely weekly.

Started this achievement today only to realize I will not be able to complete it before its gone.