People windsurfing at Han River on Jamshil skyscraper apartment cityscape on background at sunset, Man in motorboat taking pictures of two girls on paddleboards in the middle of river near Ttukseom

hangang hanriver south korea seoul paddleboard buildings panorama korea south jet ski water ski downtown city apartment windsurfing urban sundown river dusk sunset ttukseom calm windsurfer evening activity surf leisure water one jamshil sport surfer person motorboat club wind balance han boarding adventure adrenalin competitive active man extreme adrenaline exciting speed