Unfathomable place (5)
I believe the answer is:
abyss
(Other definitions for abyss that I've seen before include "great depth" , "deep depression" , "Bottomless pit" , "crevasse" , "Seemingly bottomless chasm" .)
I believe the answer is:
abyss
(Other definitions for abyss that I've seen before include "great depth" , "deep depression" , "Bottomless pit" , "crevasse" , "Seemingly bottomless chasm" .)