Tkiman had a report about the fireworks on 7/4 when it sounded like the beach was WAY out of hand but most nights it is quiet and peaceful. People tend to be rather hushed in our experience. We were there for NYE 1999-2000 in Rapa Nui and even that night it was wonderful. They did have lots of security that night so it was probably only Poly guests on the beach for the most part. At any rate, I think you'll love it.