What do starboard hand and a port hand lateral buoys indicate?

Starboard hand buoys are typically green and indicate the right side of a channel when entering from the sea, guiding vessels to keep them on their starboard side. Conversely, port hand buoys are red and mark the left side of the channel, indicating that vessels should keep them on their port side. These buoys are part of the lateral buoyage system, which helps navigators identify safe passages in waterways. Together, they ensure safe navigation by marking the boundaries of navigable channels.