The flow of migrants crossing a small sea passage from the Horn of Africa to Yemen, which has continued unabated for years, reached a record of over 117,000
migrants and asylum seekers in 2016 -- up from around 100,000 the year before.
Officials believe the figure for 2017 will be even higher.
"A lot of people who hear about the route for the first time are quite surprised," Olivia Headon, a press officer at the International Organization for Migration (IOM), told CNN. "They can't imagine why anyone would go into Yemen during the grip of conflict. But some in Somalia aren't aware of just how bad it is in Yemen."
After two-and-a-half years of grinding civil war, Yemen is in the throes of a vicious cholera outbreak and a near famine, coalescing into one of the worst humanitarian crises on the planet.
But economic and environmental factors in Somalia and Ethiopia, where most of the migrants come from, have left young people feeling there is no future for them at home.
Youth unemployment is extremely high in parts of Somalia and the country is also experiencing a severe drought that is fueling fears of famine. This spring, Somali President Mohamed Abdullahi Farmajo declared the drought a national disaster
Ethiopians are also facing acute hunger, with the UN saying at least 8.5 million people in the country are in need of immediate food assistance.
Most of the migrants hope to eventually make their way through Yemen to find jobs in Gulf countries, like Saudi Arabia, Oman, and Dubai.
"You have smugglers who are selling an idea, a dream. We see it on other routes as well. Even if you are aware of the dangers of the route, as a migrant you buy into the idea, the dream of finding a job there," Headon added.
Dangers of the route