Sulaayah Bray is transfixed by one of nature’s most delicate creations in the butterfly tent at RiverFest, a food and music festival, held May 29-31 in Marine Park, Red Bank. PHOTOS BY MATT DENTON Aubrey Giuanta tries out the hula hoop at the festival, which also featured live entertainment, riverboat cruises, rides, games, activities and crafts. Jackie Rutigliano puts a new spin on the hula hoop, demonstrating “hooping,” on May 30.