ES+ | No.3 | 2025/2026 I Near Cartagena lies the Mar Menor, Spain’s largest lagoon and Europe’s largest saltwater lagoon. This natural environment is facing pollution from its surrounding area, putting it at risk. K The city has a wide-ranging cultural calendar, from Holy Week to historical re- enactments that bring the Romans and Carthaginians face to face once again after two millennia. 121