Actually, I was lucky.
Because when I arrived there, there was the Korean agent.
Unfortunately, there was no Korean menu/guide for me but he was so kind to let me know what rules should I obey.
Very clean and calm at that time because when I went there, there was only me in women's dormitory.
Men's area and Women's area are seperated by doorlock(women's area needs to pass through men's hall).
Ahh if you expect toothbrush and toothpaste, and towels, then you have to pay a little.
In case of toothbrush set, it is 100 yen and the towels I don't remember but it was cheap.( I prepared my own towels :) )
Not that far from Otaru station, close to sushi road and otaru canal as well.
From 4pm, it is almost dark so that you can enjoy the light of canal.
Unfortunately, there was no snow yet, but if you go in Dec or Jan, maybe you can see the beautiful status of canal as you expected.