Brett Hazlett in North Eastern Brazil attempting world records. He
writes:

http://flyingthevoid.blogspot.com/2011/10/x-sertao.html

Launched at 8 am, left launch at 8:54 am, landed early at 3:45 pm
(I'll explain later), and flew 310 km, through 3 states. This is the furthest I
have flown a hang glider and is sufficient to break the FAI National (Canada)
straight distance record.

http://bretthazlett.tk/