K, a student, shortly after leaving his refugee camp on Saturday afternoon

About an hour into the 4 hour trek across the mountains into Israel

People from across the West Bank use these paths. The journey is about 35km

The final stages of the journey must be made at night to avoid security cameras

K's prayer rug on the roof of the building in Israel where he sleeps and works during the week

K on the roof after work. He doesn't use lights or leave the building at night for fear of police

Work clothes

K's lunch, canned spam again. It was brought across the mountains from home

K's friend H is lucky enough to have a room to sleep in on the building site

K at work

These houses will sell for around US$1.5M each

S has a legal permit to work, and travels to the site each morning by van

A park next to the building site. Some Hebrew graffiti on the playground wall repeats a famous football chant - death to arabs

K's boss, another illegal Palestinian, calculates wages

Illegals sleeping on the building site, around 6am