In which situation does a 'Vessel constrained by her draft' find itself?

A 'Vessel constrained by her draft' is defined in the maritime rules as a situation in which a vessel's ability to navigate is limited due to the draft of the vessel, typically in shallow water. This means that the vessel has a deep draft which prevents it from safely navigating in those areas without running aground.

When a vessel finds itself in shallow waters, its hull may not be able to pass through without risking damage or grounding, thus constraining its ability to maneuver. This situation is critical for mariners to understand because a vessel's safety can be compromised if it attempts to navigate where the water is not deep enough to accommodate its draft.

The other scenarios presented do not accurately describe the parameters set out for a vessel constrained by its draft. While a high load may affect a vessel's performance, it's not exclusively about the draft. Navigational restrictions or facing a strong current impact vessel handling but do not directly align with the specific definition of being constrained by draft.