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

Zuiyo Maru

MMSI 431306000

Not yet on Master's Mate

Flag

JPN

Length

69 m

IMO

9152313

AIS reports

A Japanese craft, Zuiyo Maru measures 69 metres. Her registration reads MMSI 431306000, IMO 9152313. Add Zuiyo Maru to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

Free forever · No credit card

Is Zuiyo Maru 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 Zuiyo Maru 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

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

Joining the Safety Initiative Network doesn't just put Zuiyo Maru 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 Zuiyo Maru and switch it all on

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Claim free → unlock everything

About Zuiyo Maru

What kind of vessel is Zuiyo Maru?

Zuiyo Maru is a vessel flagged to Japan.

What is Zuiyo Maru's MMSI?

Zuiyo Maru's MMSI is 431306000. IMO 9152313.

How big is Zuiyo Maru?

Zuiyo Maru is about 69 m long.

Is Zuiyo Maru on the Master's Mate Safety Initiative Network?

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