Mar Menor is Europe's largest saltwater lagoon, separated from the Mediterranean by a 22km sandbar called La Manga. The water is warmer, calmer, and saltier than the open sea - perfect for families and water sports.
What you need to know
Mar Menor (pronounced mar meh-NOR) means 'Smaller Sea' in Spanish, which is ironic since it's massive. This isn't your typical Mediterranean beach - it's a shallow lagoon that heats up like a giant bathtub in summer.
The area has faced environmental challenges in recent years, but locals are fiercely protective of it. When you visit, you'll understand why - there's nowhere else like it in Europe.
Where to go and what to do
The main towns around the lagoon
La Manga del Mar Menor
€€€The 22km sandbar that separates Mar Menor from the Mediterranean. Both sides have beaches - lagoon side is calmer, Mediterranean side has waves. More developed and tourist-focused than other areas.
Los Alcazares
€€My personal favourite. Has a beautiful seafront promenade (paseo maritimo) with palm trees, traditional architecture, and good local restaurants. Less crowded than La Manga.
San Pedro del Pinatar
€At the northern end. Home to salt flats and natural parks where you can see flamingos. Also has the famous mud baths (baños de lodo) - therapeutic mud you apply then wash off in the lagoon.
What to actually do here
Water sports are the main attraction. The calm waters make Mar Menor perfect for sailing, kayaking, paddleboarding, and windsurfing. You can rent equipment at most beaches.
Try the mud baths at Lo Pagan (in San Pedro del Pinatar). Locals swear by the therapeutic properties. It's free - just find the muddy area, apply the mud, let it dry, then rinse in the lagoon.
Walk or cycle the perimeter. There's a path that goes most of the way around the lagoon. The section between Los Alcazares and Santiago de la Ribera is particularly nice.
Visit the salt flats. The Salinas y Arenales de San Pedro natural park has walking trails where you can see flamingos and other birds, especially during migration seasons.
Eating around Mar Menor
Seafood is obviously the star here. Look for:
- Caldero del Mar Menor - The local rice dish cooked with fish broth and served with garlic sauce (alioli). This is what you come here to eat.
- Langostinos - Prawns from the lagoon are smaller but very flavourful.
- Dorada and lubina - Sea bream and sea bass, often grilled simply with salt.
Restaurante Dársena
€€€In Los Alcazares. Does an excellent caldero and has tables right by the water. More upscale than some places but worth it for the quality.
Chiringuito La Encarná
€€A classic chiringuito (beach bar) in Santiago de la Ribera. Simple grilled fish, cold beer, feet in the sand. What more do you need?
Practical tips
July and August get extremely hot (35°C+), crowded, and expensive. May-June and September are much more pleasant. The water stays warm into October.
Mar Menor has had algae blooms in recent years. Before swimming, look at the water - it should be clear. Local authorities post updates online about water quality.
You really need a car here. The towns are spread out around the lagoon. Public transport exists but isn't frequent. Parking can be tight in summer.
Mar Menor isn't perfect - it has its issues like any place. But when you're floating in that warm, calm water as the sun sets, you'll get why locals love it so much.