When returning to port from seaward and you see a red buoy, how should you respond?

When returning to port from seaward and you encounter a red buoy, the correct action is to keep the buoy on your starboard side. This is consistent with the IALA (International Association of Lighthouse Authorities) buoyage system, which is used in many regions, including the United States.

Red buoys are typically used to mark the right side of a navigable channel when approaching from sea. Therefore, when you are returning to port, the general rule is to keep red buoys on your starboard (right) side to ensure that you are following the proper navigational rules and staying within the designated channels. This helps to prevent accidents with other vessels and ensures safe passage.

The other options provided would lead to incorrect navigation practices. For example, keeping the buoy on the port side would place it on the left, which could mean straying from the safe channel. Ignoring the buoy altogether would disregard essential navigational aids that are put in place for the safety of all mariners. Approaching the buoy directly is also not advisable, as it could mean entering dangerous waters or areas that aren't navigable. By keeping the red buoy on your starboard side, you uphold safe boating practices while navigating back to port.