Ok so I found an awesome chest with lvl 30+ items and nice yellow gems.
From Smugger's waypoint in the Lion's Arch zone follow the white arrow. There's a cave. That cave seems to be a deadend but it's actually a jumping puzzle on the stones. up on the stones there's a way to the other zone. When you finish the jumping puzzle you're getting an achievement and there's also a very nice chest giving lvl 31+ items and some sweet ass gems. Got a blue gem with +2MF ^_^. The relog exploit is working like a charm which is the reason I am writting this.. It's a short guide but I really believe I posted everything necessary, if you have any questions ask and I'll help.
Here goes a second chest, loot is lvl 32+, there's also a RICH SILVER ORE NEXT TO IT!
You start at the point of interest where I am and you follow the trail to where my party member is. There in the cave is a chest with lvl 32+ items. Next to the chest there might be a Champion mob. When you are facing the corner where the chest and the mob are, behind you there will be a large ice hall with worms, there might be a champion worm in that room in the middle of it. In one of the corners however I found a rich silver vein, it was on the right side when you stay at the entrance and face the inside of the hall. I am sorry for no pathing to the ore but I reloged and lost the tracks. I can answer any questions regardless.
This picture is the other entrance of the cave. From where I am you go north, first you'll reach the hall with the worms and the rich silver vein and after it there is the chest. (after it = more to the north where my track is)
This is a 3rd chest I found, there's an event right now, the rest of the time there are some spiders. The chest is 28+ judging by what I got so far. The zone is Lornar's Pass.
Chest number 4 + rich iron vein next to it. The zone is Harathi Hinterlands!