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.
Vessel
Halve Maan II
MMSI 368324950 · Call sign WDN9217
Not yet on Master's MateFlag
USACall sign
WDN9217
Official No.
11111646
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
18
Halve Maan II flies the American flag — a vessel. Look for MMSI 368324950, call sign WDN9217. Halve Maan II can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card
Is Halve Maan II your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 3, 2026
Position
47.6437° N, 122.3159° W
Crossing the Salish Sea? 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Halve Maan II on the map. It hands you the full bridge:
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.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Halve Maan II and switch it all on
Free to join · nothing to install to start · cancel anytime
About Halve Maan II
What kind of vessel is Halve Maan II?
Halve Maan II is a vessel flagged to United States of America.
Where was Halve Maan II last seen?
Halve Maan II was last reported in the Salish Sea in Jun 2026 on public AIS.
What is Halve Maan II's MMSI?
Halve Maan II's MMSI is 368324950. Call sign WDN9217.
Is Halve Maan II on the Master's Mate Safety Initiative Network?
Not yet. If Halve Maan II is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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