What is true about red buoys under the island rules?

Under the Island Rules, red buoys indicate the presence of a navigational hazard, and boats should keep these buoys on their starboard (right) side when navigating. This is the opposite of the typical IALA buoyage system used in many parts of the world, where red buoys are kept on the port (left) side. The Island Rules apply in specific regions, particularly in the Caribbean, and are important for safe navigation. Always refer to local navigational charts and guidelines when sailing in these areas.