That's an event in which several powerful strokers propel the boat forward through choppy waters.
When Mr Obama may dip his toe in these choppy waters, let alone dive in, remains unclear.
After 14 months of construction in Kiel, northern Germany, the huge sun-powered yacht was this month lowered into the choppy waters of the Baltic Sea.
The vessel remains stable in choppy waters, thanks to four platform legs that anchor it into place, even during extreme conditions.
Like a savvy career counselor or financial planner, the right advisor can help you build a solid foundation as well as steer you through choppy waters once you open your doors.
