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)

SEAS THE DAY

MMSI 368051230 · Call sign WDK4040

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

28.8 m

Beam

8.5 m

Draft

3.5 m

Call sign

WDK4040

Official No.

1287900

AIS reports

SEAS THE DAY, a passenger craft flying the flag of the United States, measures 28.8 metres on deck. She has 8.5 metres in the beam and a draft measuring 3.5 metres. Officially she's MMSI 368051230, call sign WDK4040. Keep every soul aboard SEAS THE DAY covered with the free Master's Mate Safety Initiative Network.

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

Keep every soul aboard SEAS THE DAY 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 SEAS THE DAY 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 SEAS THE DAY 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 SEAS THE DAY and switch it all on

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

Claim free → unlock everything

About SEAS THE DAY

What kind of vessel is SEAS THE DAY?

SEAS THE DAY is a Passenger (Inspected) flagged to United States of America.

What is SEAS THE DAY's MMSI?

SEAS THE DAY's MMSI is 368051230. Call sign WDK4040.

How big is SEAS THE DAY?

SEAS THE DAY is about 28.8 m long, 8.5 m on the beam, drawing 3.5 m.

Is SEAS THE DAY on the Master's Mate Safety Initiative Network?

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