A regatta is typically a sailing event where sailboats race over short distances. A race is never more than day, usually lasts a few hours. A regatta consists of series of such races over a few days.
The Super Special regatta is a prequel to the round the world circumnavigation. You can think of it a befitting warm up before the sailors embark on the circumnavigation.
The following is the schedule and coordinates of the Super Special Regatta: