That's just one of the million ways of entertaining your friends on the beach when sunbathing becomes too boring.
King of Six-Pack Abs Shows His ‘Skills' on the Beach
06:30 GMT 29.06.2015 (Updated: 07:34 GMT 30.06.2015)
© Photo : http://www.youtube.com/channel/UC66UUZusTvkckSmf6zUrMIw
This young man is so hardcore that his sit-ups reach his knees.