MMSI 366578070 · Call sign WCF6046
Not yet on Master's MateOn the American registry, HARMONY is a craft. Find her under MMSI 366578070, call sign WCF6046. Join HARMONY to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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 HARMONY on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.