José Moreno and Katerin Huertas have walked and hitchhiked hundreds of miles. Moreno, 20, wears beach sandals and carries a backpack stuffed with baby clothes, nappies and oat milk. Huertas, 22, carries their seven-month-old son, Kylean, strapped to her chest.
They cross a knee-deep river and scramble up a muddy slope in the sweltering heat. But the worst of their journey is yet to come. Ahead of them lies one of the most dangerous border crossings in the world: the Darién Gap, a lawless, roadless region of mountainous jungle, venomous snakes, fast-flowing rivers and murderous drug traffickers that connects South and Central America.