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)
MARIN
MMSI 366969980 · Call sign WZC8518
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
47 m
Beam
9.8 m
Draft
1.8 m
Call sign
WZC8518
Official No.
578103
AIS reports
1
MARIN flies the American flag — a 47-metre passenger ferry. Below, she has a 9.8 m beam and a draft of 1.8 m. She's listed under MMSI 366969980, call sign WZC8518. MARIN is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard MARIN safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
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Live AIS position · Jun 9, 2026 05:46 UTC
Position
37.9441° N, 122.5086° W
Speed
0.0 kn
Course
260°
Sailing San Francisco Bay? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put MARIN 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 MARIN and switch it all on
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About MARIN
What kind of vessel is MARIN?
MARIN is a Passenger (Inspected) flagged to United States of America.
Where was MARIN last seen?
MARIN was last reported in San Francisco Bay on public AIS.
What is MARIN's MMSI?
MARIN's MMSI is 366969980. Call sign WZC8518.
How big is MARIN?
MARIN is about 47 m long, 9.8 m on the beam, drawing 1.8 m.
Is MARIN on the Master's Mate Safety Initiative Network?
Not yet. If MARIN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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