It might sound disgusting but scientists hope a new study of surfers' poo will help them learn more about water pollution.

As part of the Beach Bums project the poo of regular surfers and non-surfers will be compared.

As surfers swallow a lot of water while they're hitting the waves, it's thought the differences between the poo will show scientists what sea water can do to the human body.

Ayshah hit the beach to find out more...