The oil spill disaster off Spain's north-west coast, resulting from the sinking of the tanker Prestige, has caused serious damage to the region's vital fishing industry, and dozens of beaches have already been contaminated by thick sludge.
With more oil reaching the Spanish coast, thousands of volunteers from all over the country have gone to help in the clean-up operation.
When the oil reaches coastal waters, it wreaks far more damage on fragile ecosystems, some of them vital to local human economies. While much of the coastline of this part of Spain is rocky, there are sheltered inlets, or...