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

KALM HARBOUR

MMSI 368277930 · Call sign WDN4102

Not yet on Master's Mate

Type

Recreational

Flag

USA

Length

12.2 m

Beam

3.8 m

Draft

2.3 m

Call sign

WDN4102

Official No.

1300596

Hull ID

THC4X003I920

AIS reports

Registered in the United States, KALM HARBOUR is a 12.2-metre private vessel. Below, she has a 3.8-metre beam and a draft of 2.3 m. She broadcasts as MMSI 368277930, call sign WDN4102. Join KALM HARBOUR to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

Free forever · No credit card · for recreational captains

Keep KALM HARBOUR 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 KALM HARBOUR 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 KALM HARBOUR 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 KALM HARBOUR and switch it all on

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

Claim free → unlock everything

About KALM HARBOUR

What kind of vessel is KALM HARBOUR?

KALM HARBOUR is a Recreational flagged to United States of America.

What is KALM HARBOUR's MMSI?

KALM HARBOUR's MMSI is 368277930. Call sign WDN4102.

How big is KALM HARBOUR?

KALM HARBOUR is about 12.2 m long, 3.8 m on the beam, drawing 2.3 m.

Is KALM HARBOUR on the Master's Mate Safety Initiative Network?

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