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

Diamond Sun

MMSI 677048200

Not yet on Master's Mate

Flag

TZA

Length

143 m

IMO

8701923

AIS reports

Diamond Sun is a craft registered in United Republic of Tanzania, spanning 143 metres. She's listed under MMSI 677048200, IMO 8701923. Join Diamond Sun to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

Free forever · No credit card

Is Diamond Sun 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 Diamond Sun 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 Diamond Sun 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 Diamond Sun and switch it all on

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About Diamond Sun

What kind of vessel is Diamond Sun?

Diamond Sun is a vessel flagged to United Republic of Tanzania.

What is Diamond Sun's MMSI?

Diamond Sun's MMSI is 677048200. IMO 8701923.

How big is Diamond Sun?

Diamond Sun is about 143 m long.

Is Diamond Sun on the Master's Mate Safety Initiative Network?

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