THe Head of the Hooch Regatta, previously known as the Head of the Chattahoochee Regatta, is a 2-day rowing regatta held annually on the first full weekend in November in Chattanooga, Tennessee. The Head of the Hooch Regatta, previously known as the Head of the Chattahoochee Regatta, is a 2-day rowing regatta held annually on the first full weekend in November in Chattanooga, Tennessee. Watch this awesome video where we show how fun Head of the Hooch is!