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.

Passenger (Inspected)

SEA WITCH

MMSI 367354880 · Call sign WCY3763

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

12.6 m

Beam

4.3 m

Draft

1.9 m

Call sign

WCY3763

Official No.

595490

AIS reports

SEA WITCH is a passenger craft flying the flag of the United States, spanning 12.6 metres. Below, she has a beam measuring 4.3 metres and a draft measuring 1.9 metres. Look for MMSI 367354880, call sign WCY3763. Join SEA WITCH to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

Free forever · No credit card · for passenger & charter operators

Keep every soul aboard SEA WITCH safe.

Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.

Switch on the safety stack — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever SEA WITCH 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 passenger & charter operators

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

Joining the Safety Initiative Network doesn't just put SEA WITCH on the map. It hands you the full bridge:

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

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.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim SEA WITCH and switch it all on

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Claim free → unlock everything

About SEA WITCH

What kind of vessel is SEA WITCH?

SEA WITCH is a Passenger (Inspected) flagged to United States of America.

What is SEA WITCH's MMSI?

SEA WITCH's MMSI is 367354880. Call sign WCY3763.

How big is SEA WITCH?

SEA WITCH is about 12.6 m long, 4.3 m on the beam, drawing 1.9 m.

Is SEA WITCH on the Master's Mate Safety Initiative Network?

Not yet. If SEA WITCH is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).