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)
Harbor Princess
MMSI 367358290 · Call sign WDE4825
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
25.5 m
Beam
7.3 m
Draft
2.7 m
Call sign
WDE4825
Official No.
681499
AIS reports
1
Harbor Princess, a ferry vessel hailing from the United States, measures 25.5 metres on deck. Her hull carries a 7.3 m beam and a draft of 2.7 m. On AIS she shows as MMSI 367358290, call sign WDE4825. Bring Harbor Princess aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Harbor Princess 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 Harbor Princess 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 Harbor Princess 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 Harbor Princess and switch it all on
Free to join · nothing to install to start · cancel anytime
About Harbor Princess
What kind of vessel is Harbor Princess?
Harbor Princess is a Passenger (Inspected) flagged to United States of America.
What is Harbor Princess's MMSI?
Harbor Princess's MMSI is 367358290. Call sign WDE4825.
How big is Harbor Princess?
Harbor Princess is about 25.5 m long, 7.3 m on the beam, drawing 2.7 m.
Is Harbor Princess on the Master's Mate Safety Initiative Network?
Not yet. If Harbor Princess is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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