United States of America · MMSI 367100570 · Call sign WDC9318
Not yet on Master's MateAquamarineII flies the American flag — a vessel. Her papers read MMSI 367100570, call sign WDC9318. AquamarineII can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put AquamarineII on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.