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
S5
MMSI 319303100 · Call sign ZGUC
Not yet on Master's MateType
Pleasure Craft
Flag
CYMLength
65 m
Beam
12 m
Draft
3.5 m
Call sign
ZGUC
IMO
9888924
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
170
S5 is a Cayman Islands recreational boat — 65 metres overall. She carries a beam of 12 m and a 3.5-metre draft. She broadcasts as MMSI 319303100, call sign ZGUC, IMO 9888924. Sign S5 up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card · for recreational captains
Keep S5 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
Last known position · Jun 4, 2026
Position
43.7476° N, 7.4497° E
Cruising the Ligurian 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 · for recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put S5 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 S5 and switch it all on
Free to join · nothing to install to start · cancel anytime
About S5
What kind of vessel is S5?
S5 is a Pleasure Craft flagged to Cayman Islands.
Where was S5 last seen?
S5 was last reported in the Ligurian Sea in Jun 2026 on public AIS.
What is S5's MMSI?
S5's MMSI is 319303100. Call sign ZGUC. IMO 9888924.
How big is S5?
S5 is about 65 m long, 12 m on the beam, drawing 3.5 m.
Is S5 on the Master's Mate Safety Initiative Network?
Not yet. If S5 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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