Surf etiquette is a set of unwritten rules that helps maintain safety and respect in the water. One key principle is to respect the right of way; the surfer closest to the peak of the wave has priority. This means waiting your turn and not dropping in on someone else's wave, which can lead to dangerous collisions. Another important aspect is to communicate with fellow surfers. If you're paddling for a wave, make eye contact and signal your intentions. Additionally, always be mindful of your surroundings and avoid crowding other surfers, especially in popular spots like Huntington Beach or Waikiki.