Аreas surrounded by sewage

If you could add more details from the dreams, that would be great. Flowing sewage is found in old cities. I see you chose a canal to illustrate your dream. There are many urban detective stories set in the sewers or underground canals. These are all symbols of a decaying civilization. These areas can be exciting, mysterious, full of intrigue, but they can also be dangerous. There is a danger of falling in, so-to-speak. I would read some old novels about sewers, such as in Paris. I think you want to be an artist or musician. There are things in your subconscious mind you need to clear out. You could be very avant garde and push the envelope with something new and exciting.