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.
Passenger (Inspected)
Larimar
MMSI 303130000 · Call sign WDN5985
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
45.8 m
Beam
9.8 m
Draft
4 m
Call sign
WDN5985
IMO
9219068
Official No.
1073892
AIS reports
2
Larimar flies the American flag — a 45.8-metre ferry. She carries a beam measuring 9.8 metres and a 4-metre draft. Her registration reads MMSI 303130000, call sign WDN5985, IMO 9219068. Sign Larimar 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 passenger & charter operators
Keep every soul aboard Larimar safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Larimar 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 · for passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Larimar on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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 Larimar and switch it all on
Free to join · nothing to install to start · cancel anytime
About Larimar
What kind of vessel is Larimar?
Larimar is a Passenger (Inspected) flagged to United States of America.
What is Larimar's MMSI?
Larimar's MMSI is 303130000. Call sign WDN5985. IMO 9219068.
How big is Larimar?
Larimar is about 45.8 m long, 9.8 m on the beam, drawing 4 m.
Is Larimar on the Master's Mate Safety Initiative Network?
Not yet. If Larimar 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.