Chemicals to protect Nerja caves from eroding

RESEARCHERS from the Cueva de Nerja are studying the use of chemicals to stop deterioration caused by microorganisms on the rocks.

The artificial lighting in caves open to visitors allows these microorganisms to photosynthesize and develop, which in turn leads to erosion of the rocks and leaves large green stains on them.

Chemicals and gels are being used to prevent more damage from being caused to the rocks inside the Cueva de Nerja, although many will have to be cleaned first.