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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.
Tug
TB.SAKURA HARBOUR
MMSI 525500505 · Call sign YDC4125
Not yet on Master's MateType
Tug
Flag
IDNLength
30 m
Beam
8 m
Draft
2.5 m
Call sign
YDC4125
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
TB.SAKURA HARBOUR, a working tug under the Indonesian flag, measures 30 metres on deck. She carries a 8-metre beam and a 2.5-metre draft. On AIS she shows as MMSI 525500505, call sign YDC4125. Join TB.SAKURA HARBOUR to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for working boats
Built for boats that work — like TB.SAKURA HARBOUR.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 10, 2026 00:00 UTC
Position
5.9734° S, 106.7339° E
Status
Under way (sailing)
Speed
0.2 kn
Course
339°
Destination
____________________
ETA
10-06 04:50 UTC
Wherever TB.SAKURA HARBOUR roams, 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 TB.SAKURA HARBOUR on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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 TB.SAKURA HARBOUR and switch it all on
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About TB.SAKURA HARBOUR
What kind of vessel is TB.SAKURA HARBOUR?
TB.SAKURA HARBOUR is a Tug flagged to Indonesia.
Where was TB.SAKURA HARBOUR last seen?
TB.SAKURA HARBOUR was last reported in around 6°S 107°E in Jun 2026 on public AIS.
What is TB.SAKURA HARBOUR's MMSI?
TB.SAKURA HARBOUR's MMSI is 525500505. Call sign YDC4125.
How big is TB.SAKURA HARBOUR?
TB.SAKURA HARBOUR is about 30 m long, 8 m on the beam, drawing 2.5 m.
Is TB.SAKURA HARBOUR on the Master's Mate Safety Initiative Network?
Not yet. If TB.SAKURA HARBOUR is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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