If dreamed you that water in the channel dirty and smelly, then you should undergo medical examination, having paid special attention to digestive tract. If water in the channel clean, then in the near future you can relax and enjoy delights of life. For the young woman the dream in which she floats on the channel in the boat, means that she adheres to severe looks on life, than will deserve love and respect of the husband. If she passes via the channel on the bridge and sees clear water under herself, then she will live the joyful life which is not burdened with problems of getting of means of livelihood. If water muddy, then life puts it before many serious problems.
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.