Most villages and towns in the Czech Republic have fish ponds and/or have rivers. Vodniks guard them both. You can always recognize a vodnik: seaweed hangs from him, and green slime covers his body and his hair and clothes are wet – one coattail drips water. He loves to catch children, pulling them under water where he holds their souls in covered clay pots so they can´t escape. If the villagers are bad people, their fish pond has no vodnik. Do you think this is good? No, it´s certainly not, because no one is guarding the pond, no vodnik scaring away children who could fall in the water. Sometimes a vodnik floats a yellow ribbon on the pond to attract children. Do not be fooled by things you might see floating on the pond, and do not go close to the vodnik or his pond.