To see clear, calm waves in your dream, signifies a calming of emotions.
It may also signal an important decision to be made.
To hear waves crashing in your dream, indicates tenderness and relaxation.
It may also symbolize your romantic feelings about someone.
To dream that you are caught in a tidal wave, signifies the overwhelming strength of your emotions, perhaps accompanied by tears that you are holding back in your waking life.
To see muddy, violent waves in your dream, signifies that a major error was made in an important decision.