Interesting! So it can be 0 down there. I know also that there is a rare chance that when you are discovering the smaller Ice Islands on Carlin (3 of them, one accessible from Folda, the other is random event from a shortcut travelling from Port Hope), there is the famous lone island with Polar Bears that you can get there from Folda, and you can actually discover the whole section of the 3 ice islands just by staying there (very rare to get full 7 points there, but it is possible)
I had 2 points over there. One was right when I get to the last floor of Cyclopolis (big room with many corridors leading to Behemoth rooms) and another one was located at the southern small room with behemoths and cycs. Kinda of painful to get there if you are low level