Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Unclassified
GRAND BAY
U.S. Official No. 637609
Not yet on Master's MateType
Unclassified
Flag
USALength
46.3 m
Beam
16.5 m
Draft
4.1 m
First reported
Jun 2026
AIS reports
1
Registered in the United States, GRAND BAY is a 46.3-metre craft. She carries a beam measuring 16.5 metres and a 4.1 m draft. Look for U.S. official number 637609. GRAND BAY is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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Is GRAND BAY your boat?
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
Wherever GRAND BAY roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put GRAND BAY on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim GRAND BAY and switch it all on
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About GRAND BAY
What kind of vessel is GRAND BAY?
GRAND BAY is a Unclassified flagged to United States of America.
What is GRAND BAY's U.S. Official No.?
GRAND BAY's U.S. Official No. is 637609.
How big is GRAND BAY?
GRAND BAY is about 46.3 m long, 16.5 m on the beam, drawing 4.1 m.
Is GRAND BAY on the Master's Mate Safety Initiative Network?
Not yet. If GRAND BAY is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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