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.

Vessel

Nautilus Balder

MMSI 220239000

Not yet on Master's Mate

Flag

DNK

Length

35 m

IMO

8406157

AIS reports

On the Danish registry, Nautilus Balder is a 35-metre craft. Her registration reads MMSI 220239000, IMO 8406157. Nautilus Balder is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.

Free forever · No credit card

Is Nautilus Balder your boat?

Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

Claim this boat — free →

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

Wherever Nautilus Balder 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

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

Joining the Safety Initiative Network doesn't just put Nautilus Balder 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.

Worldwide Charts

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

Live AIS & Traffic

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

Weather & Routing

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

Onboard Cameras

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

Systems Monitoring

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

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 Nautilus Balder and switch it all on

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Claim free → unlock everything

About Nautilus Balder

What kind of vessel is Nautilus Balder?

Nautilus Balder is a vessel flagged to Denmark.

What is Nautilus Balder's MMSI?

Nautilus Balder's MMSI is 220239000. IMO 8406157.

How big is Nautilus Balder?

Nautilus Balder is about 35 m long.

Is Nautilus Balder on the Master's Mate Safety Initiative Network?

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