As the racers make the first turn in the PA SUP Championships at Moraine State Park, they are met with the sound of live music from the main stage of the Regatta at Lake Arthur. Thousands of people are sprawled out listening to the music, sifting through food trucks, and watching the sailboats, paddleboards and windsurfers jetting by.  A backdrop of thick conifers gives way to blue skies above the horizon of the lake and this is only the beginning.