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
KAKURYU MARU
MMSI 431012013
Not yet on Master's MateFlag
JPNLength
104.9 m
IMO
9845893
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
12
KAKURYU MARU, a vessel flying the Japanese flag, measures 104.9 metres on deck. Her papers read MMSI 431012013, IMO 9845893. It's free to add KAKURYU MARU to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card
Is KAKURYU MARU 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
34.3915° N, 135.2065° E
Crossing the Sea of Japan? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put KAKURYU MARU 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 KAKURYU MARU and switch it all on
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About KAKURYU MARU
What kind of vessel is KAKURYU MARU?
KAKURYU MARU is a vessel flagged to Japan.
Where was KAKURYU MARU last seen?
KAKURYU MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KAKURYU MARU's MMSI?
KAKURYU MARU's MMSI is 431012013. IMO 9845893.
How big is KAKURYU MARU?
KAKURYU MARU is about 104.9 m long.
Is KAKURYU MARU on the Master's Mate Safety Initiative Network?
Not yet. If KAKURYU MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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