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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.
Recreational

THE FOUR SEAS

U.S. Official No. 1279947

Not yet on Master's Mate
Type
Recreational
Flag
USAUSA
Length
9.6 m
Beam
3.1 m
Draft
1.6 m
Hull ID
SERV3117E717
First reported
Jun 2026
AIS reports
1

On the American registry, THE FOUR SEAS is a 9.6-metre pleasure boat. She has a 3.1 m beam and a draft of 1.6 m. Her papers read U.S. official number 1279947. Join THE FOUR SEAS to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

Free forever · No credit card · for recreational captains

Keep THE FOUR SEAS looked after — even when you’re not aboard.

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

Wherever THE FOUR SEAS roams, 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 · for recreational captains

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put THE FOUR SEAS 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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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 THE FOUR SEAS and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About THE FOUR SEAS

What kind of vessel is THE FOUR SEAS?
THE FOUR SEAS is a Recreational flagged to United States of America.
What is THE FOUR SEAS's U.S. Official No.?
THE FOUR SEAS's U.S. Official No. is 1279947.
How big is THE FOUR SEAS?
THE FOUR SEAS is about 9.6 m long, 3.1 m on the beam, drawing 1.6 m.
Is THE FOUR SEAS on the Master's Mate Safety Initiative Network?
Not yet. If THE FOUR SEAS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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