[opminion]

There is one in Hamburg [1], highly recommended.

It consists of a tour with several rooms modelling a variety of features of everyday life, including a boat trip. There is also a bar at the end, where you buy a drink (paying for it was rather humbling for me) and sit down around the guide for a final chat. You never get to see the guide.

You are given a walking stick but for me it was pretty useless, I was stumbling on everything and everyone the same.

They also offer dinners in the dark.

The best part of the experience for me was realising that you are in the blind person's (admittedly fake) world, some form of opposite of when the blind person is in your world when walking down the street and bumping against a car parked in the middle of the street crossing.

[1] http://www.dialog-im-dunkeln.de/