You are approached by another vessel's Master requesting permission to follow closely in your wake through a poorly charted area, relying on your local knowledge. As Master, what should you consider before agreeing?

A. Consider whether slowing down, course changes, or an incident affecting your own vessel could put the following vessel at risk, ensure clear communication of your intentions (course/speed changes) throughout, and recognise that "local knowledge" does not remove the other Master's own responsibility for their vessel's safe navigation

B. Refuse on principle — assisting another vessel's navigation is never appropriate

C. Agree, but switch off your AIS so the other vessel cannot be tracked

D. Agree immediately — assisting other vessels is always straightforward and carries no implications for your own vessel

A. The tidal height at the time of transit to confirm sufficient under-keel clearance

B. The yacht's fuel consumption for that leg

C. The colour of the seabed shown on the chart

D. Only the distance to the next waypoint

A. Switch the ECDIS to standby mode and navigate by GPS position alone

B. Ignore it — ECDIS alarms are frequently false and can be left running

C. Assess the situation against the planned route and charted depths, take action to maintain safe water, and inform the Master if there is any doubt

D. Acknowledge and silence the alarm immediately so it does not distract the helmsman