Coves of Bolnuevo Nature · Mazarrón, Bajo Guadalentín, Murcia Image of Mazarrón, not of the place itself. Group of unspoilt coves in the pedanía of Bolnuevo, Mazarrón, at the foot of the Sierra de las Moreras, among them Cala Amarilla, la Grúa, Parazuelos, Covaticas and Percheles. Photo: pictures Jettcom (CC BY 3.0) What to see and do in Mazarrón