As night falls on the Colombian road from Cúcuta to Bucaramanga, a steady stream of walkers from across the Venezuelan border arrive at the La Don Juana shelter. They look exhausted.
Most have been travelling for days, marching along a dangerously narrow road, carrying their few precious belongings on their backs. Their children trudge onwards holding hands.
It is October 2021 and the Venezuelan migration crisis, although not as intense as in other periods, continues to bleed into neighbouring Colombia – and nobody can stop it. Up to six million migrants and refugees have left Venezuela in recent years.