To dream that you are in or see a boat signifies your ability to cope with and express your emotions. Pay particular attention to the condition and state of the waters, whether it is calm or violent, clear or murky, etc. Are you “smooth sailing”? Alternatively, you may be ready to confront your subconscious and unknown aspects of yourself. The dream could be telling you not to rock the boat and to stay out of harm’s way.
Dreaming that a wave hits your boat and knocks you into the water means that you are letting your emotions guide your decisions. Perhaps you are acting too irrationally.
To dream that you are trying to jump off a boat suggests that you want to confront those difficult emotions and approach your problems head on.