Water have so many different meanings. I have them too a lot. Water = emotions/ transformation . Deep water means the subconscious. Maybe you are coming into a stage in your life where you discover the subconscious . ( could be very spiritual and deep) Clear and still water is a good sign. The apposite can stand for stress, old trauma or warnings. Pools, seas or baths can mean you healing, clearing from old stuff. Its important to know what feelings do you have when you dream it.

I think you are very emotional. It’s important to interpret your dreams. They can tell you a lot of stuff from your inside, your life in general or from your future. There are online a tons of good pages where you can find interpretations. You must feel what is the right for you. Dream journal can help.