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.

Passenger (Inspected)

Mystery

MMSI 367362370 · Call sign WDE5121

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

18.2 m

Beam

6.1 m

Draft

1.7 m

Call sign

WDE5121

Official No.

287244

AIS reports

Mystery is an American excursion vessel, 18.2 metres from stem to stern. She carries a beam of 6.1 m and a 1.7-metre draft. Her registration reads MMSI 367362370, call sign WDE5121. Mystery is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.

Free forever · No credit card · for passenger & charter operators

Keep every soul aboard Mystery safe.

Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.

Switch on the safety stack — free →

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

Wherever Mystery 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 passenger & charter operators

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

Joining the Safety Initiative Network doesn't just put Mystery on the map. It hands you the full bridge:

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Live AIS & Traffic

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

Systems Monitoring

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

Weather & Routing

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

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.

Onboard Cameras

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

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim Mystery and switch it all on

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

Claim free → unlock everything

About Mystery

What kind of vessel is Mystery?

Mystery is a Passenger (Inspected) flagged to United States of America.

What is Mystery's MMSI?

Mystery's MMSI is 367362370. Call sign WDE5121.

How big is Mystery?

Mystery is about 18.2 m long, 6.1 m on the beam, drawing 1.7 m.

Is Mystery on the Master's Mate Safety Initiative Network?

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