Drone footage highlights the scale and drama of the long flow of Middle Eastern refugees from one camp to another.
The border crossing between Croatia and Slovenia is a key point in the migrant trail, and since mid-September around 250,000 people are believed to have walked it.
Croatia followed Hungary’s lead and introduced border controls last month, forcing migrants to cross the border.
New drone footage (watch video below) shows the scale of migration at the Slovenian-Croatian border, where hundreds of refugees are seen crossing farmland on foot on Sunday.
The Balkan route switched to Slovenia after Hungary closed its border. An EU summit on Sunday agreed a plan to manage the flow of refugees by providing more shelter, border registration and increased naval operations
Slovenia has complained it lacks manpower and equipment to handle the influx of tens of thousands of people crossing through the country.