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)

LETTS DIVE

MMSI 368271620 · Call sign WDN3431

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

8.3 m

Beam

3.7 m

Draft

1.6 m

Call sign

WDN3431

Official No.

935005

AIS reports

LETTS DIVE is an American passenger vessel — 8.3 metres overall. She carries a beam measuring 3.7 metres and a 1.6 m draft. Find her under MMSI 368271620, call sign WDN3431. Add LETTS DIVE to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

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

Keep every soul aboard LETTS DIVE 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 LETTS DIVE 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 LETTS DIVE 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 LETTS DIVE and switch it all on

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

Claim free → unlock everything

About LETTS DIVE

What kind of vessel is LETTS DIVE?

LETTS DIVE is a Passenger (Inspected) flagged to United States of America.

What is LETTS DIVE's MMSI?

LETTS DIVE's MMSI is 368271620. Call sign WDN3431.

How big is LETTS DIVE?

LETTS DIVE is about 8.3 m long, 3.7 m on the beam, drawing 1.6 m.

Is LETTS DIVE on the Master's Mate Safety Initiative Network?

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