On September 16, Bolnuevo and its coves will be the scene of a new ‘Seaman Challenge’ that will attract more than a hundred swimmers of medium and long distance from all over Spain. Two tests of 4 and 8.5 kilometres will be carried out, scoring the latter for the Spanish Cup. The swimmers will tour two circuits between the coves of Bolnuevo, with the Island of Cueva Lobos as a reference, the beach of Bolnuevo and Playa Grande.