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)
SEA OTTER EXPRESS
MMSI 367181580 · Call sign WBF7535
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
19.5 m
Beam
4 m
Draft
1.5 m
Call sign
WBF7535
Official No.
981942
AIS reports
1
On the American registry, SEA OTTER EXPRESS is a 19.5-metre passenger ferry. Her hull carries 4 metres in the beam and a draft of 1.5 m. On AIS she shows as MMSI 367181580, call sign WBF7535. The Master's Mate Safety Initiative Network welcomes SEA OTTER EXPRESS — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard SEA OTTER EXPRESS 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 SEA OTTER EXPRESS 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 SEA OTTER EXPRESS 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 SEA OTTER EXPRESS and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEA OTTER EXPRESS
What kind of vessel is SEA OTTER EXPRESS?
SEA OTTER EXPRESS is a Passenger (Inspected) flagged to United States of America.
What is SEA OTTER EXPRESS's MMSI?
SEA OTTER EXPRESS's MMSI is 367181580. Call sign WBF7535.
How big is SEA OTTER EXPRESS?
SEA OTTER EXPRESS is about 19.5 m long, 4 m on the beam, drawing 1.5 m.
Is SEA OTTER EXPRESS on the Master's Mate Safety Initiative Network?
Not yet. If SEA OTTER EXPRESS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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