MMSI 368232190 · Call sign WDM7244
Not yet on Master's MateIsobel III is an American 21.2-metre leisure boat. Isobel III has a beam of 5.7 m and a 3.6-metre draft. Find her under MMSI 368232190, call sign WDM7244. It's free to add Isobel III to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
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
Joining the Safety Initiative Network doesn't just put Isobel III on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.