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
Marcap Siba
MMSI 518712000
Not yet on Master's MateFlag
COKLength
57 m
IMO
9277175
AIS reports
2
Marcap Siba is a 57-metre boat, on the Cook Islands registry. She broadcasts as MMSI 518712000, IMO 9277175. The Master's Mate Safety Initiative Network welcomes Marcap Siba — free to join, cruiser-run, and always on watch.
Free forever · No credit card
Is Marcap Siba 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
Wherever Marcap Siba roams, 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 Marcap Siba 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 Marcap Siba and switch it all on
Free to join · nothing to install to start · cancel anytime
About Marcap Siba
What kind of vessel is Marcap Siba?
Marcap Siba is a vessel flagged to Cook Islands.
What is Marcap Siba's MMSI?
Marcap Siba's MMSI is 518712000. IMO 9277175.
How big is Marcap Siba?
Marcap Siba is about 57 m long.
Is Marcap Siba on the Master's Mate Safety Initiative Network?
Not yet. If Marcap Siba 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.