NARRATOR: Three thirteen-year-olds from the UK are on their way to explore the geography of India. Dua, Amalia and Nayan are on a ten hour flight through the night from London to New Delhi, the ...

The Ganges river in India is more than 2,500km long and has the most populated river basin in the world. Hundreds of millions of people and a huge range of wildlife rely on the river Ganges. But ...