I find myself unable to fully explore the Quesh map, thanks to three seemingly inaccessible hexagons at the very north between the Shadow Arsenal Facility and the Quesh Venom Refinery - and Google wasn't much help (It did link me a similar thread posted on another forum, but without any solutions).
The only way I could see myself get up there would be a cluster of rocks just to the right of the Shadow Arsenal Facility... but my many, many attempts at scaling them failed each and every time, so I'm guessing that's probably not the way up there.
Anyone had more luck with those three damned hexagons, who could either point me in the right direction... or even "hold my hand" to get up there?