What is the name of the largest saltwater lagoon in Europe, located in the region of Murcia and separated from the Mediterranean by a 22km sandbar?

• A Albufera of Valencia
• B Mar Menor ✓
• C Ebro Delta
• D Laguna de Fuente de Piedra

The Mar Menor (Small Sea) is Europe's largest saltwater lagoon with exceptionally high salinity and unique ecological value, though it has suffered from severe eutrophication in recent years.