if you have any form of levitation, you can climb to the rocks just by the inner palisade and there is a gap in the fence at location 4469.70, 460.64, 389.95.
If you 'float' to that gap and let the levi drop a bit, you can then carry on into the palisade itself.
To get out, climb to the top of the watchtower and float out over the internal gate / fence back into the compound proper.
Edited, Oct 28th 2022 6:34am by Bilderov