For a prime spot on Qasr el-Nil bridge, spanning the River Nile near the heart of central Cairo, it's best to arrive well before sunset.

On warm spring nights, the bridge is the place to be for courting couples in the capital of the most populous Arab country, where poverty, crowds and a conservative culture leave few other meeting places.

"We know how to be in love in a place like this," says Ibrahim, 19, a student and part-time DJ in Cairo. "We come for the breeze, the view, and to be far from the pollution," he said, resting on the bridge's iron railing with his fiancee, Marwa, an 18-year-old technology student.