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
HARBOR PRINCESS
MMSI 368291260 · Call sign WDN5579
Not yet on Master's MateType
Passenger
Flag
USADraft
2.5 m
Call sign
WDN5579
IMO
263880
Official No.
269388
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
70
Flying the American flag, HARBOR PRINCESS is a passenger boat. She's built with a 2.5 m draft. She broadcasts as MMSI 368291260, call sign WDN5579. Put HARBOR PRINCESS on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
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
Last known position · Jun 4, 2026
Position
45.3735° N, 85.0146° W
Sailing Lake Michigan? 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 flagged to United States of America.
Where was HARBOR PRINCESS last seen?
HARBOR PRINCESS was last reported in Lake Michigan in Jun 2026 on public AIS.
What is HARBOR PRINCESS's MMSI?
HARBOR PRINCESS's MMSI is 368291260. Call sign WDN5579. IMO 263880.
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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