From humble beginnings, the river flows down the mountain and into the sea. Pull on your wellies and wade right in. How deep does it go and how fast does it travel? What soil types can you find by the river? Which animals make their homes there? Let’s get down to the river bank and find out. Now hop on an imaginary boat and travel some of the world’s most majestic rivers – the Ganges, the Thames, the Amazon and Nile – and keep a journal as you follow their course. Time to investigate. As part of the local news team, it’s your task to track down the source of some mystery pollution. Where did it come from and who is to blame? Let’s meander through the world of rivers, taking a dip into their watery world.