The caves of Drach were formed by the sea forcing its entrances in the rock. This four caves are located in Mallorca. They extend to a depth of 82 feet and reach 1.5 miles in length. The four caves –Black, White, Luis Salvador and the French- are interconnected to each other. They are completely adequate to tourist visits, including ladders and electrical lighting. The visit take around one hour and includes a life concert and a boat ride on the Lake Martel. This lake is inside the caves and is probably the most interesting piece of the visit to the caves of Drach.