Chasing the sun

"A great walk ... In heaven and a little hell" is how Sylvia Berjas-Morales, 69, described her journey along China's Great Wall in a poem written in French.

Berjas-Morales has traveled more than 3,000 kilometers along the wall since 2008, the year when Beijing hosted the Olympic Games.

"By walking along it, I can learn not only about the Great Wall but about the real China," she says.