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

HMAS Cape Naturaliste

MMSI 503103000

Not yet on Master's Mate

Flag

AUS

Length

59 m

IMO

4764094

AIS reports

On the Australian registry, HMAS Cape Naturaliste is a 59-metre boat. Find her under MMSI 503103000, IMO 4764094. HMAS Cape Naturaliste can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.

Free forever · No credit card

Is HMAS Cape Naturaliste 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 HMAS Cape Naturaliste 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 HMAS Cape Naturaliste 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 HMAS Cape Naturaliste and switch it all on

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About HMAS Cape Naturaliste

What kind of vessel is HMAS Cape Naturaliste?

HMAS Cape Naturaliste is a vessel flagged to Ashmore and Cartier Islands.

What is HMAS Cape Naturaliste's MMSI?

HMAS Cape Naturaliste's MMSI is 503103000. IMO 4764094.

How big is HMAS Cape Naturaliste?

HMAS Cape Naturaliste is about 59 m long.

Is HMAS Cape Naturaliste on the Master's Mate Safety Initiative Network?

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