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.

Recreational

MARY BELLE III

U.S. Official No. 521799

Not yet on Master's Mate

Type

Recreational

Flag

USA

Length

9.4 m

Beam

3.2 m

Draft

1.6 m

First reported

Jun 2026

AIS reports

MARY BELLE III is an American 9.4-metre pleasure boat. She has 3.2 metres in the beam and a draft measuring 1.6 metres. Find her under U.S. official number 521799. Give MARY BELLE III the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.

Free forever · No credit card · for recreational captains

Keep MARY BELLE III looked after — even when you’re not aboard.

Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.

Look after her — claim free →

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

Wherever MARY BELLE III 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 recreational captains

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

Joining the Safety Initiative Network doesn't just put MARY BELLE III 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.

Onboard Cameras

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

Weather & Routing

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

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Systems Monitoring

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

Live AIS & Traffic

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

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 MARY BELLE III and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About MARY BELLE III

What kind of vessel is MARY BELLE III?

MARY BELLE III is a Recreational flagged to United States of America.

What is MARY BELLE III's U.S. Official No.?

MARY BELLE III's U.S. Official No. is 521799.

How big is MARY BELLE III?

MARY BELLE III is about 9.4 m long, 3.2 m on the beam, drawing 1.6 m.

Is MARY BELLE III on the Master's Mate Safety Initiative Network?

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