Hi, i found a Place near that new Town Novodmitrovsk- there you can move into the big Stones. If u turn arround u will get glitched into it and u cant get out.
I also stuck inside this Rocks, i tryed about 1 hour to get out- theres no way!
The exactly coordinate is on this map "dayzdb.com/map/chernarusplus#6.118.008
118-005 on the left inside that box.