Riparia's River

When four friends are horrified to find their swimming hole filled with green slime, a mysterious naturalist named Riparia helps the children understand why the water became polluted—and together they figure out how they can bring clean water back to the river they all love.

Cand patru prieteni sunt ingroziti sa-si gaseasca groapa de inot plina cu slime verde, un naturalist misterios pe nume Riparia ii ajuta pe copii sa inteleaga de ce apa s-a poluat si impreuna isi dau seama cum pot aduce apa curata inapoi in raul pe care toti il iubesc.