G) Cave.
H) Abandoned mine.
I) Old estate.
J) Waterfall.
I suggest we prioritize exploring from F to J. The other locations seem like potential traps for now. After checking those two, we'll decide whether to investigate them further or move deeper into the forest. Because we'll definitely need to go there eventually, and it's possible that our "passengers" or someone connected to them from our forest area are located there.