I accidentally showed up 6 hours early to an exam (since when do we have evening exams??) and figured that the best way to spend the time was to check out some nearby mines. The first one is Idsättragruvan, which actually has a pretty interesting history. After the mine stopped being profitable the Swedish military took control of it and used it as an oil depot by literally flooding the shafts with oil. Unfortunately it is mostly under water today.
The second one is Idmannsgruvan which is a normal mine with a decently long tunnel.
Entrance to the Idsättra facility
Start of the shaft
The shaft is flooded
Entrance to the Idmann mine
Inside the mine
Looking out