Last night, I realized one of my dreamsigns is seeing waves that are bigger than usual, anywhere from 10 to 500 feet high. This is great, however this only happens when I'm near a large body of water in my dream.

My idea is to help make my dream involve a body of water in hope of then seeing my dreamsign and becoming lucid. I thought of playing an mp3 of waves hitting a beach while I'm sleeping and visualizing the setting for my dream beforehand. Will this work? And are there any other things I could do?