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
Doola Sun
MMSI 440054060
Not yet on Master's MateFlag
KORLength
99.6 m
IMO
9827748
AIS reports
2
Doola Sun is a boat sailing under the South Korean flag, 99.6 metres long. On the registers she's MMSI 440054060, IMO 9827748. Add Doola Sun to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Free forever · No credit card
Is Doola Sun 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
Live AIS position · Jun 9, 2026 03:25 UTC
Position
35.1052° N, 129.3049° E
Status
Under way (engine)
Speed
12.9 kn
Course
20°
Destination
ULSAN
ETA
06-09 14:30 UTC
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.
Free with your claim
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Doola Sun 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 Doola Sun and switch it all on
Free to join · nothing to install to start · cancel anytime
About Doola Sun
What kind of vessel is Doola Sun?
Doola Sun is a vessel flagged to South Korea.
Where was Doola Sun last seen?
Doola Sun was last reported in the Sea of Japan on public AIS.
What is Doola Sun's MMSI?
Doola Sun's MMSI is 440054060. IMO 9827748.
How big is Doola Sun?
Doola Sun is about 99.6 m long.
Is Doola Sun on the Master's Mate Safety Initiative Network?
Not yet. If Doola Sun is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.