Meet Shukha, Rufo and Taiaso.
These three girls are best friends and attend a boarding school together in Kenya.
The only source of water at their school is this well.
And, as you can see, they share the well with hundreds of livestock.
As they scoop out water, they have to avoid animal pellets.
So, when they drink that water, they often get sick.
The girls walk to the well several times a day to get just enough to drink for meals.