So, I was walking around from the start of act 2, and was not advancing any quest at all. I found New Londo Ruins at the Eastern-South (is that correct?) part of the game map, and I also found diving suit around there, with 'from Judy' in its name.
Long story short: I put it on, but I can't get it off, and therefore I cannot change any of my clothes too.
I guess that there is a flag that should let me take this damned thing off of me, but it only happens when I finish some specific side...

I am trapped in a scuba gear send help