MMSI 249069000 · Call sign 9HJR9
Not yet on Master's MateARETHUSA is a Maltese 60-metre ferry. ARETHUSA has a 10-metre beam and a 3-metre draft. Officially she's MMSI 249069000, call sign 9HJR9, IMO 9398022. It's free to add ARETHUSA to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
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
Joining the Safety Initiative Network doesn't just put ARETHUSA on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.