Qualla: Mar Menor

Mar Menor: Introduction

Mon, 20 Jul 2026 00:00:00 GMT

On 28 August 2021, tens of thousands of people joined hands and formed a human chain around an entire sea. The Mar Menor, the "minor sea," is a shallow saltwater lagoon on Spain's southeastern coast, and it had just surrendered four or five tons of dead fish to its beaches, suffocated in water that could no longer hold enough oxygen to keep them alive. Roughly 70,000 people ringed all seventy kilometers of its shoreline to demand it be saved. A little over a year later, Spain gave the Mar Menor something no other ecosystem in Europe possessed: the legal right to exist.

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Mar Menor: A Sea Within a Sea

Mon, 20 Jul 2026 00:00:00 GMT

The name is a quiet joke of scale. Locals call the Mediterranean the Mar Mayor, the greater sea, which makes this lagoon its lesser cousin, the smaller sea held just inside the coast. It covers about 135 square kilometers yet reaches barely seven meters at its deepest, so its wat...

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Mar Menor: Salt, Garum and Watchtowers

Mon, 20 Jul 2026 00:00:00 GMT

People have worked these shores for a very long time. Evidence of human occupation reaches back to the Paleolithic, with Copper Age finds at the Marchamalo salt flats. The Romans knew the lagoon as "Palus" and prized it twice over: as a sheltered harbor for their ships and as a s...

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Mar Menor: From Cures to Concrete

Mon, 20 Jul 2026 00:00:00 GMT

The lagoon's modern life began with its supposed powers of healing. In the nineteenth century towns like San Javier and San Pedro del Pinatar took shape along the water, and by the early twentieth century visitors were arriving for "novenarios," a prescribed cycle of nine therape...

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Mar Menor: The Sea That Learned to Sue

Mon, 20 Jul 2026 00:00:00 GMT

The northern salt flats remain a protected natural park and a wetland of international standing, recognized under the Ramsar Convention in 1994 and prized for its birdlife. But the wider lagoon has been fighting for its life. By 2016, after eighteen years of ignored warnings, pol...

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