http://www.redbull.com/en/adventure/stories/1331620262876/a-new-hang-gliding-world-record-in-chile

What was the biggest challenge? Actually there were quite a few, starting with
the exploration of the 500km-long volcanic cliff. Considering the flying
aspects, I limited the route to a stretch of 300km south of Iquique, as this
section is accessible by coastal road. Then there was the unexpected problem of
the South Pacific being really chilly due to the cold Humboldt current off the
coast.

This led to a low inversion, which in turn meant a low thermal working height
for me as a hang-gliding pilot. It’s common knowledge that we’re dependent on
the wind and sun, but it was a new experience to be affected by the sea
temperature as well!