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)
Coastal Adventurer
MMSI 368358960 · Call sign WDP4939
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
13.4 m
Beam
4.9 m
Draft
1.3 m
Call sign
WDP4939
Official No.
1344536
Hull ID
ACO8274CD324
AIS reports
1
Coastal Adventurer is an American 13.4-metre passenger vessel. She carries a 4.9 m beam and a 1.3 m draft. Look for MMSI 368358960, call sign WDP4939. Sign Coastal Adventurer 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 Coastal Adventurer 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 Coastal Adventurer 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 Coastal Adventurer 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 Coastal Adventurer and switch it all on
Free to join · nothing to install to start · cancel anytime
About Coastal Adventurer
What kind of vessel is Coastal Adventurer?
Coastal Adventurer is a Passenger (Inspected) flagged to United States of America.
What is Coastal Adventurer's MMSI?
Coastal Adventurer's MMSI is 368358960. Call sign WDP4939.
How big is Coastal Adventurer?
Coastal Adventurer is about 13.4 m long, 4.9 m on the beam, drawing 1.3 m.
Is Coastal Adventurer on the Master's Mate Safety Initiative Network?
Not yet. If Coastal Adventurer is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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