Against the backdrop of the beautiful waters of West Lake Okoboji, a bright sunny sky and a gentle northwest breeze, the eighth annual Okoboji Blue Water Festival held on Saturday, Aug. 12, at Preservation Plaza continued to provide the general public with both a celebration of clean water efforts and challenges to continue to address clean water issues. Beginning with the Chalkstock sidewalk art early in the morning and ending with the incredible concert in the evening with A. J.