You're transiting through an offshore wind farm known to have uncrewed survey vessels (USVs) operating in the area. What should you do differently compared to a routine transit with no known USV activity?

A. Nothing — a visual scan in clear weather is sufficient regardless of vessel type in the area

B. Actively check for known USV operations before transit, and treat radar/AIS/tracking data as essential rather than supplementary, since small low-profile uncrewed vessels can be a genuinely difficult visual contact even in good visibility

C. USVs are required to actively avoid all crewed traffic, so no additional vigilance is needed from the crewed vessel

D. Only relevant at night or in reduced visibility

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. 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

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

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

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