My tip“One hour; a nominal ticket; closed on Mondays; the last stop on the seafront walk from the port.”
A 16th-century fort on a rock at the entrance to the harbour. It was once a prison and is now an archaeology museum, with Celtic gold treasures and Roman pieces from the Tower of Hercules.
Address
Paseo Marítimo Alcalde Francisco Vázquez 2, A Coruña