The partially frozen beach/cliff is the one place I cannot seem to find to get the last master, I've searched all across the map but can't seem to find where this place is, or if I have I missed the master in a place I've been, it's hard to tell what's a location and what's just scenery in some cases. What's the area's name/general location?
Also sorry for all the questions, should be the last one, but how does one go about progressing the quest for Karas and Slith? Benno's specifies a location, Matthis's is hinted at in dialogue, but those two seem to have no real leads. I've unlocked the ability to go to Falgar's castle and want to do all the side stuff before that.