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.

Recreational

calypso explorer

MMSI 366857520 · Call sign WDA8735

Not yet on Master's Mate

Type

Recreational

Flag

USA

Length

19.7 m

Beam

6.4 m

Draft

2.8 m

Call sign

WDA8735

Official No.

567120

AIS reports

Registered in the United States, calypso explorer is a 19.7-metre cruising boat. She carries a beam measuring 6.4 metres and a 2.8 m draft. She's on record as MMSI 366857520, call sign WDA8735. calypso explorer can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.

Free forever · No credit card · for recreational captains

Keep calypso explorer looked after — even when you’re not aboard.

Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.

Look after her — claim free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever calypso explorer 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 recreational captains

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put calypso explorer on the map. It hands you the full bridge:

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim calypso explorer and switch it all on

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

Claim free → unlock everything

About calypso explorer

What kind of vessel is calypso explorer?

calypso explorer is a Recreational flagged to United States of America.

What is calypso explorer's MMSI?

calypso explorer's MMSI is 366857520. Call sign WDA8735.

How big is calypso explorer?

calypso explorer is about 19.7 m long, 6.4 m on the beam, drawing 2.8 m.

Is calypso explorer on the Master's Mate Safety Initiative Network?

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