U.S. Official No. 1122662
Not yet on Master's MateOn the American registry, O' (WHAT A) DAY is a 9.8-metre weekend cruiser. She has 3.2 metres in the beam and a draft of 2.6 m. Officially she's U.S. official number 1122662. Join O' (WHAT A) DAY to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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 O' (WHAT A) DAY on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.