[LittleNemoInS]

Hardly the first... The SeaBubbles were tested on the Geneva lake (the one in Switzerland) three years ago... https://en.wikipedia.org/wiki/SeaBubble

[polack]

The Candela Seven is a finished product while the SeaBubble haven't made its way to production yet. With that in mind it's not unreasonable to think Candela had a prototype done before the Bubble...