While in AMS I found a boat preservation club, run out of "Boom Chiago". For a donation of 10 EU. you get a hour and 1/2 to 2 hour canal tour.

The best part...it's a smoking/drinking cruse. I went two days in a row.

If you ran out of bud...they would stop....If you ran out of drink...they stop...bathroom?....they stop.

Check this when you go there

Peace