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
MARIA THERESE
MMSI 319289100 · Call sign ZGSG5
Not yet on Master's MateType
Pleasure Craft
Flag
CYMLength
22 m
Beam
12 m
Call sign
ZGSG5
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
155
MARIA THERESE, a Cayman Islands family boat, measures 22 metres on deck. MARIA THERESE has a 12-metre beam. Officially she's MMSI 319289100, call sign ZGSG5. MARIA THERESE belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Free forever · No credit card · for recreational captains
Keep MARIA THERESE 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 3, 2026
Position
18.0344° N, 63.0900° W
Cruising the Caribbean? 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 MARIA THERESE 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 MARIA THERESE and switch it all on
Free to join · nothing to install to start · cancel anytime
About MARIA THERESE
What kind of vessel is MARIA THERESE?
MARIA THERESE is a Pleasure Craft flagged to Cayman Islands.
Where was MARIA THERESE last seen?
MARIA THERESE was last reported in the Caribbean in Jun 2026 on public AIS.
What is MARIA THERESE's MMSI?
MARIA THERESE's MMSI is 319289100. Call sign ZGSG5.
How big is MARIA THERESE?
MARIA THERESE is about 22 m long, 12 m on the beam.
Is MARIA THERESE on the Master's Mate Safety Initiative Network?
Not yet. If MARIA THERESE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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