Anger rises as Brazilian mine disaster threatens river and sea with toxic mud

Conservationists and engineers battle to reduce the ecological fallout as mud and iron-ore residue from the BHP Billiton-Vale dam collapse flows down the Rio Doce to the Atlantic

Seven years ago, Luciana Cunha paid her first visit to the fishing village of Regincia, in the Brazilian state of Espirito Santo, to surf the famous waves near the mouth of the Rio Doce.

She fell in love twice - with the place and her husband, Fabio Gama - and together they set up an eco-tourism business, renting out kayaks by day and offering guided tours to the nesting sites of marine turtles at night.