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)
Hoku Nai'a
MMSI 367187560 · Call sign WDN2975
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
19.7 m
Beam
7.1 m
Draft
2.1 m
Call sign
WDN2975
Official No.
1199458
Hull ID
AAP65113G707
AIS reports
2
Hoku Nai'a is an American 19.7-metre passenger vessel. Hoku Nai'a has a 7.1-metre beam and a 2.1 m draft. Her papers read MMSI 367187560, call sign WDN2975. Hoku Nai'a is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Hoku Nai'a 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 Hoku Nai'a 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 Hoku Nai'a 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 Hoku Nai'a and switch it all on
Free to join · nothing to install to start · cancel anytime
About Hoku Nai'a
What kind of vessel is Hoku Nai'a?
Hoku Nai'a is a Passenger (Inspected) flagged to United States of America.
What is Hoku Nai'a's MMSI?
Hoku Nai'a's MMSI is 367187560. Call sign WDN2975.
How big is Hoku Nai'a?
Hoku Nai'a is about 19.7 m long, 7.1 m on the beam, drawing 2.1 m.
Is Hoku Nai'a on the Master's Mate Safety Initiative Network?
Not yet. If Hoku Nai'a 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.