1. explosives
2. add-on/modders
3. AFAIR there is access to every chest, maybe from other map
4. cabin ON the river ? there are 3 cabins there, one is a subquest puzzle, other are just for gameworld immersion
1. The lever is hidden on the south side from the cemetery if you search the river bank.
3. There is a hidden path along the river.
4. The cabin near the geo marker is for storing your supplies.
I tried explosives outside the crypt. All it did was blow up the vase inside. It's the one you have to blow the fence to get to? I can't find a lever anywhere even with reveal map.
And i thought about the way to the map from the other side. didn't see it. Oh well.