At 54 (id reccomend 55 or 56 though, we were going a tad slow >.<) you can hunt Robbers in Boyhada tree. Not too hard to get to the camp site, since nothing along the correct path will aggro. You can run in from the front entrance and try and find your way, or come around the back entrance (follow the goobbue farmers, they run that path all the time) and will lead you directly to the robber room. Id say it supports 1-2 parties, more then that and your gonna end up short on a few pulls.
Can hunt the robbers for the high exp, but expect long fights. Knight Crawlers make good prey and drop quite a bit faster then the crabs, but there IS an exp difference after the patch. Crab fights: 180-240 exp, crawler fights 180 always.
Multiple camps, high ledges, cave entrances, just be careful not to fight with your back to one of the crawler caves or fall down the ledge that leads to the back of the zone (id assume to Dragons Aery too, there are Ancient Goobbues within sight)
Oh, and watch out for Aquarious (sp), he hurts.