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)

River Willow Riverboat

MMSI 368362920 · Call sign WDP5381

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

23.1 m

Beam

9.1 m

Draft

2.9 m

Call sign

WDP5381

Official No.

1331453

AIS reports

On the American registry, River Willow Riverboat is a 23.1-metre passenger craft. Her hull carries a beam measuring 9.1 metres and a draft measuring 2.9 metres. Look for MMSI 368362920, call sign WDP5381. Bring River Willow Riverboat aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.

Free forever · No credit card · for passenger & charter operators

Keep every soul aboard River Willow Riverboat 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 River Willow Riverboat 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 River Willow Riverboat 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 River Willow Riverboat and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About River Willow Riverboat

What kind of vessel is River Willow Riverboat?

River Willow Riverboat is a Passenger (Inspected) flagged to United States of America.

What is River Willow Riverboat's MMSI?

River Willow Riverboat's MMSI is 368362920. Call sign WDP5381.

How big is River Willow Riverboat?

River Willow Riverboat is about 23.1 m long, 9.1 m on the beam, drawing 2.9 m.

Is River Willow Riverboat on the Master's Mate Safety Initiative Network?

Not yet. If River Willow Riverboat is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).