When heading upstream green buoys should be on the left/port side of the boat . The opposite is true when traveling downstream.
Keep the buoy on your port (left) side.
I think you should----Keep the buoy on your port (left) side.
port side(Left)
pass on port (left) side
You should keep the buoy on your starboard side. The channel should be marked with green to port and red to starboard as you enter.
Keeping it on your port, passing it to starboard, will prevent your running aground.
Keep the buoy on your right or starboard side.
When passing a green navigational buoy, you should keep the buoy on your port (left) side. This indicates that you are following the "red right returning" rule, which means you pass the buoy to the left when navigating towards a harbor or safe water. Always ensure to maintain a safe distance and be aware of any other vessels in the area. Adhering to these practices helps ensure safe navigation.
Since this is a Green Lighted Buoy sighted while approaching a harbour,this is a Lateral port hand side mark, IALA region B. To keep this buoy on your port side while travelling upstream.
When passing a buoy marked with the number 4 and a flashing red light, you should keep the buoy on your port (left) side. This indicates that you are in a channel where the right side is marked with green buoys. Always maintain a safe distance from the buoy and be aware of any potential hazards in the water.
Red Right Returning- so the green buoy should be on your left side, the red on your right, and you in the middle.
They should be passed on your starboard side.