A profile that looks for all chests on timeless isle for the achievement.

[thegosu]

This: All treasure chest locations on the Timeless Isle (I didn't make this) - Imgur

Treasure, Treasure Everywhere - Achievement - World of Warcraft

 

[thebrodieman]

3 of the chests are not reachable using profiles as they are now. They require use of an albatross to pick you up, and drop you on the spots. This requires some tweaking to accurately stop and start combat routines at precise moments/locations. Not easy.

Akna's ObjectGatherer plugin will seek out chests to pick up that you can see, however pathing is not 100% and it does try to fly to some, which is not possible on the Isle.