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)
Quarry
MMSI 368095650 · Call sign WDK8594
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
12.2 m
Beam
3.8 m
Draft
1.7 m
Call sign
WDK8594
Official No.
1154533
Hull ID
THC40039I304
AIS reports
1
Quarry, a ferry vessel on the the United States registry, measures 12.2 metres on deck. She has a beam of 3.8 m and a draft of 1.7 m. Her papers read MMSI 368095650, call sign WDK8594. Claim Quarry free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Quarry 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 Quarry 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 Quarry 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 Quarry and switch it all on
Free to join · nothing to install to start · cancel anytime
About Quarry
What kind of vessel is Quarry?
Quarry is a Passenger (Inspected) flagged to United States of America.
What is Quarry's MMSI?
Quarry's MMSI is 368095650. Call sign WDK8594.
How big is Quarry?
Quarry is about 12.2 m long, 3.8 m on the beam, drawing 1.7 m.
Is Quarry on the Master's Mate Safety Initiative Network?
Not yet. If Quarry is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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