Here is a list of zones that i can get out of the map from.
just ask how and i will try to explain.
Malbaltor (very interesting one and easy)(at least 1 sorc needed)
Bangkorii (very interesting but a bit hard in spots) (easier on a sorc but maybe possible without)
Deshan (somewhat interesting, not very hard)(sorc needed)
The rift (pretty easy, but not much to explore)(rapids needed most likely)
I feel like im forgetting one.. as for zones i was able to but have been patched:
Imperial sewers (used to be pretty easy, a lot to explore, could kill reds from under there base
MOL (up until a few days ago) (able to get normal chest drops
Sorry for not explaining in detail but i will later if people are interested.