U.S. Official No. 1355738
Not yet on Master's MateA...B...SEA'S is an American recreational vessel — 13.2 metres overall. She has a beam of 4 m and a draft of 2 m. Officially she's U.S. official number 1355738. It's free to add A...B...SEA'S to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put A...B...SEA'S on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.