Every morning, the three sisters climb into their logboat in order to row to school. They live on the east coast of Nicaragua, one of the world's poorest countries, and the youngest of them has just turned five; the oldest is nine.

The ice covering the river is treacherous and ever-changing in appearance. Despite this, Tuguldur has to find a suitable point at which to cross the river.

Every Monday, little Lorenzo struggles alone as he makes his way over slippery scree and past steep canyons. And all this just so he can go to school and receive something to eat there. The 6 year old lives in the extensive Sierra Madre Occidental.

When the schoolchildren wake up to the first rays of sunshine, the temperature is already over 30 degrees. They live in the Danakil desert in northeast Ethiopia, near an active volcano, in a region which is the world's hottest on average.

They live in Papua New Guinea, an island in the Pacific Ocean, in the middle of one of the world's largest rainforests. And some of them take a route to school which will blow your mind.

The children from Madibago in the southern Philippines have one of the most spectacular and dangerous ways to school in the world. Some walk alone through the jungle for hours, others risk their lives, in order to make it past a steep face of rock.

In northern Colombia, more than 180 miles north of Medellín, the landscape is marked by water and seemingly endless expanses. Every day, the children who live there face this rough, unpredictable wilderness - with just one goal in mind.

The Yungas Valley in Bolivia: a unique landscape, where the Andes Mountains meet the Amazon Rain Forest. In this remote section of one of the poorest countries in South America, children have a very long and incredible dangerous walk to school.