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 (Uninspected)

HIDDEN TREASURE

MMSI 366787870 · Call sign WCZ9971

Not yet on Master's Mate

Type

Passenger (Uninspected)

Flag

USA

Length

18 m

Beam

5.5 m

Draft

2.6 m

Call sign

WCZ9971

Official No.

1056473

Hull ID

VKY58048F798

AIS reports

HIDDEN TREASURE is an American ferry — 18 metres overall. She's built with a 5.5-metre beam and a 2.6-metre draft. She broadcasts as MMSI 366787870, call sign WCZ9971. Sign HIDDEN TREASURE up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.

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

Keep every soul aboard HIDDEN TREASURE 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 HIDDEN TREASURE 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 HIDDEN TREASURE 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 HIDDEN TREASURE and switch it all on

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

Claim free → unlock everything

About HIDDEN TREASURE

What kind of vessel is HIDDEN TREASURE?

HIDDEN TREASURE is a Passenger (Uninspected) flagged to United States of America.

What is HIDDEN TREASURE's MMSI?

HIDDEN TREASURE's MMSI is 366787870. Call sign WCZ9971.

How big is HIDDEN TREASURE?

HIDDEN TREASURE is about 18 m long, 5.5 m on the beam, drawing 2.6 m.

Is HIDDEN TREASURE on the Master's Mate Safety Initiative Network?

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