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.
Vessel
SEA CRESCENT
MMSI 367667560 · Call sign WDH9391
Not yet on Master's MateFlag
USACall sign
WDH9391
Official No.
637101
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
14
On the American registry, SEA CRESCENT is a boat. Her papers read MMSI 367667560, call sign WDH9391. The Master's Mate Safety Initiative Network welcomes SEA CRESCENT — free to join, cruiser-run, and always on watch.
Free forever · No credit card
Is SEA CRESCENT 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
Live AIS position · Jun 9, 2026 15:07 UTC
Position
36.9579° N, 76.4208° W
Status
Under way (engine)
Speed
7.4 kn
Course
301°
Destination
US^0Q4U>0FBQ
Crossing Chesapeake Bay? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SEA CRESCENT 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 SEA CRESCENT and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEA CRESCENT
What kind of vessel is SEA CRESCENT?
SEA CRESCENT is a vessel flagged to United States of America.
Where was SEA CRESCENT last seen?
SEA CRESCENT was last reported in Chesapeake Bay in Jun 2026 on public AIS.
What is SEA CRESCENT's MMSI?
SEA CRESCENT's MMSI is 367667560. Call sign WDH9391.
Is SEA CRESCENT on the Master's Mate Safety Initiative Network?
Not yet. If SEA CRESCENT is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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