abel cruz takes us to the hill where the nets are being set up.surrounded by mountains like this, that are often shrouded in fog. the area is barren, sandy and rocky. and yet, according to estimates, some 150,000 people move here, year after year. driven by hopes of a better life. hopes that are usually dashed. locals are hard at work - with some very makeshift tools. a tin doubles as a spade. hernán lópez is using a simple iron bar. they're digging holes - where the poles for the netting will go. abel cruz helps out. can you give me a hand, put some stones in the hole. exactly. done! it's stable. one net can capture between 200 and 400 liters of water a day from the foggy air. the men secure a plastic gutter - the water drains into it, and then runs though filters and into tanks. it's a very simple system but will supply families with water. the first three nets are ready. they'll provide enough water for six families. in the next few days the men will put up more nets - fog catchers that will supply 60 families. up here in the hills, life will h