Garrison Buddies

This achievement is very, very easy!

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• At first, you have to be in a group.
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• Once in a group, the person who is not the leader has to click on his own portrait, and then will appear the option ''View Leaders Garrison''.
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• Once you are in the citadel, instead of being on your own, you will be in the citadel of your friend.
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Remember if you wanna go back to your citadel, just click on your portrait and choose ''View your Garrison'' option.

Tried everything this is what worked.
Both players have to have each other on the their friends' list
Both have to be in a group with each other
The player in the group that is not the leader can click their portrait and click the option "Visit Leader's Garrison" this should do it however;
*When all fails like it did for me go into you friend's Frostwall mines and come back out. That was the only way I was awarded the achievement.

Finally zoned to my friend's garrison while he was in Gorgrond. I did NOT get the achievement.

Asked him to come back to his garrison, so he flew back. Even when he was 1 inch away from me, I did NOT get the achievement.

Left the zone, and came back, still nothing.

Went back to mine, then went back to his (bare in mind he did not leave his garrison after he came back) and POOF! I got the achievement.

Hope this helps.