Francisco Lufinha is trying to sail 500 miles non stop on a kite board. He is 307.5 nautical miles and non-stop time record 28h53m so far. From there on he has just been accumulating miles and time. All his muscles and joints in general and his knees in special are very ached. It got a little lighter and he has to paddle with the kite which makes it harder on the body.
The sun is now setting and this second night will be tough. As I type he has just spent 30h non stop. And clocking. Check it on FB. – Anarchist João.