At the southwestern tip of El Hierro, the smallest and most pristine of the Canary Islands, lies a marine sanctuary of extraordinary proportions. The Mar de las Calmas (Sea of Calm) owes its name to a unique phenomenon: sheltered by the island's own topography, these waters remain peaceful even when the open ocean churns, creating a natural refuge spanning over 24,800 hectares where underwater life thrives under exceptional conditions.

The geological characteristics of the seabed, plunging to depths exceeding 2,300 meters, combined with privileged ocean currents, have transformed this corner into a marine ecosystem of invaluable worth. Here, tropical and subtropical waters converge, harboring emblematic species from cetaceans to coral formations, creating an underwater universe of exceptional biodiversity in Spanish waters.

This enclave is on track to become Spain's first exclusively marine National Park, recognizing decades of conservation and respect from locals and visitors alike. Diving its depths or sailing its transparent surface connects you with an ocean preserving its purest essence, where each dive reveals submerged volcanic landscapes and unforgettable encounters with Atlantic marine life.