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

Maritime Tranquility

MMSI 563113500

Not yet on Master's Mate

Flag

SGP

Length

183 m

IMO

9848338

AIS reports

Registered in Singapore, Maritime Tranquility is an 183-metre boat. On the registers she's MMSI 563113500, IMO 9848338. Claim Maritime Tranquility free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.

Free forever · No credit card

Is Maritime Tranquility 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 Maritime Tranquility 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 Maritime Tranquility 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 Maritime Tranquility and switch it all on

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Claim free → unlock everything

About Maritime Tranquility

What kind of vessel is Maritime Tranquility?

Maritime Tranquility is a vessel flagged to Singapore.

What is Maritime Tranquility's MMSI?

Maritime Tranquility's MMSI is 563113500. IMO 9848338.

How big is Maritime Tranquility?

Maritime Tranquility is about 183 m long.

Is Maritime Tranquility on the Master's Mate Safety Initiative Network?

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