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.
Pleasure Craft
21.12
Pleasure Craft · Cayman Islands · last seen 18°S 177°E · Jun 2026 · MMSI 319230500 · Call sign ZGSD3
Not yet on Master's MateType
Pleasure Craft
Flag
CYMLength
60 m
Beam
10 m
Draft
3.4 m
Call sign
ZGSD3
IMO
9960021
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
88
Registered in the Cayman Islands, 21.12 is a 60-metre private cruiser. Her hull carries a 10-metre beam and a draft measuring 3.4 metres. Her papers read MMSI 319230500, call sign ZGSD3, IMO 9960021. Put 21.12 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 recreational captains
Keep 21.12 looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 15, 2026 16:54 UTC
Position
17.7726° S, 177.3841° E
Status
Moored
Speed
0.0 kn
Course
1°
Destination
DENARU MARINA
Wherever 21.12 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 21.12 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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 21.12 and switch it all on
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About 21.12
What kind of vessel is 21.12?
21.12 is a Pleasure Craft flagged to Cayman Islands.
Where was 21.12 last seen?
21.12 was last reported in around 18°S 177°E in Jun 2026 on public AIS.
What is 21.12's MMSI?
21.12's MMSI is 319230500. Call sign ZGSD3. IMO 9960021.
How big is 21.12?
21.12 is about 60 m long, 10 m on the beam, drawing 3.4 m.
Is 21.12 on the Master's Mate Safety Initiative Network?
Not yet. If 21.12 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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