Forty minutes north-east of the port lies the Mar Menor, the largest saltwater lagoon in Europe, a warm shallow inland sea fringed by the La Manga sandbar and the wetlands of San Pedro del Pinatar, where for centuries people have coated themselves in the mineral-rich mud said to ease aches and skin. Floating in water so dense and calm it feels otherworldly, with flamingos in the nearby salt pans, is a genuinely different Spanish coast from the cruise-port bustle. It is the one bucket-list experience here that the distance makes worth a ship excursion.
What to expect
Expect about 40 minutes each way by road, then time at La Manga's twin seafronts or at the Lo Pagán / San Pedro del Pinatar salt-marsh boardwalks for the mud baths and birdlife. The lagoon water is bath-warm, very shallow and extraordinarily buoyant; the grey mud is smeared on, dried in the sun, then rinsed in the sea. Bring a swimsuit you don't mind staining and water shoes for the muddy shallows. Note the lagoon has faced ecological stress in recent years, so conditions vary by season.
Good to know
Because of the drive and tight cruise timing, this is the one excursion to pre-book rather than improvise. If going independent, arrange a private driver-guide in advance and build in a generous return buffer; do not attempt it by taxi-and-hope on a short call. Pack a towel, sun protection and a change of clothes, and combine with the Roman theatre on the way back as the ship itinerary does.
Sail there
Luxury cruises that call at Cartagena — book through us, the fare is identical and your concierge stays on your side.
More to do in Cartagena
- The Roman Theatre of Cartagena with the Rafael Moneo museum approach
- Private licensed-guide circuit of the Molinete Roman Forum and the Punic Wall
- Tourist boat across the bay to the 18th-century Fuerte de Navidad
- Modernista old-town walk and a luxury tapas circuit of Calle Mayor
- Castillo de la Concepción and the Panoramic Lift for the full-harbour view