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

Tong Shan Hai

MMSI 412304000

Not yet on Master's Mate

Flag

CHN

Length

176 m

IMO

8025551

AIS reports

Tong Shan Hai is a vessel flying the Chinese flag, spanning 176 metres. Her papers read MMSI 412304000, IMO 8025551. Claim Tong Shan Hai free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.

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Is Tong Shan Hai 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.

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

Wherever Tong Shan Hai 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 Tong Shan Hai 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 Tong Shan Hai and switch it all on

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Claim free → unlock everything

About Tong Shan Hai

What kind of vessel is Tong Shan Hai?

Tong Shan Hai is a vessel flagged to China.

What is Tong Shan Hai's MMSI?

Tong Shan Hai's MMSI is 412304000. IMO 8025551.

How big is Tong Shan Hai?

Tong Shan Hai is about 176 m long.

Is Tong Shan Hai on the Master's Mate Safety Initiative Network?

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