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)
High Tide
MMSI 367612250 · Call sign WDH3915
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
10.4 m
Beam
3.1 m
Draft
1.6 m
Call sign
WDH3915
Official No.
1226064
Hull ID
FINL8131C010
AIS reports
1
High Tide flies the American flag — a 10.4-metre passenger craft. Her hull carries a 3.1 m beam and a draft measuring 1.6 metres. On AIS she appears as MMSI 367612250, call sign WDH3915. There's a place for High Tide on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard High Tide 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 High Tide 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 High Tide 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 High Tide and switch it all on
Free to join · nothing to install to start · cancel anytime
About High Tide
What kind of vessel is High Tide?
High Tide is a Passenger (Inspected) flagged to United States of America.
What is High Tide's MMSI?
High Tide's MMSI is 367612250. Call sign WDH3915.
How big is High Tide?
High Tide is about 10.4 m long, 3.1 m on the beam, drawing 1.6 m.
Is High Tide on the Master's Mate Safety Initiative Network?
Not yet. If High Tide is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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