There's a lot of really neat looking mountains and other interesting terrain to explore, but unfortunately, it seems like nearly every one of them has very strangely shaped invisible walls preventing you from exploring the top or going over them.
It doesn't seem to only be around quest-related locations and such either. For example, the town where you can get the Creeper mask (and several other masks with neat stats), the nearby mountains are absolutely riddled with weird, seemingly random, invisible walls preventing you from crossing the top of them. Not just near the wheat field for the related quest, but pretty much everywhere as far as I could tell. I felt my way around the invisible walls for quite a long ways, and I couldn't find any way over the top of any of the mountain rage, despite the vast majority of the tops being completely innocuous looking ordinary terrain. And since the town inside can be freely entered and left if you follow the chasms, it feels really weird that you aren't allowed to go over the top.
Another example is the mountains near the Gavel Gate home location. They're very nice looking, and I'd love to climb them, but there's just weird random invisible walls near the peaks, and they have very strange shapes as well.
I'm sure there's many more areas that are similarly blocked off as well, but I'm not very far into the game yet, and so those two are the main ones I've run into.
Given the neat mobility spells that the classes have, it seems really weird and disappointing to block off so much cool terrain that would be fun to explore and would give very nice views of the land. And while it's possible there might be some areas where technical reasons mean it's easier to wall them off, it looks very much like a lot of areas could be easily opened up without causing any problems.
Obviously, this is pretty low priority, but it would be nice if mountain tops and things like that could start being opened up as time permits.


