When arriving on a navigation lock what is the order of priority?

When arriving at a navigation lock, the order of priority typically follows these guidelines: first, larger vessels often take precedence due to their size and maneuverability constraints; second, vessels with specific time-sensitive schedules, such as commercial ships, may be prioritized; third, recreational boats usually follow, and finally, any smaller vessels or those with less urgency may be accommodated last. It's essential for all vessels to communicate clearly and follow the instructions of the lock personnel to ensure safe and efficient operations.