THE ONLY RIVER IN THE BALEARIC ISLANDS
The only river on the island of Ibiza, and indeed in all the Balearic Islands, is the Santa Eulària River. This waterway has historically been a rarity in the archipelago, where seasonal streams predominate, carrying water only after heavy rains. Unlike these, the Santa Eulària River maintained a relatively constant flow for centuries, making it a fundamental element for the development of the area.
It rises in the interior of Ibiza and flows for several kilometers before emptying into the municipality of Santa Eulària des Riu. Along its course, the river traverses agricultural landscapes that have traditionally benefited from its waters. Thanks to this resource, irrigation systems were established, enabling cultivation on an island where fresh water is scarce.

One of the most interesting aspects of the Santa Eulària River is its historical and cultural significance. For centuries, its waters powered flour mills, some of which are still preserved as part of the island’s ethnographic heritage. These mills were essential to the local economy, as they allowed for the processing of grain and provided sustenance to the population.
However, today the river has lost much of its natural flow due to the overexploitation of aquifers and urban and tourist development. In many sections, especially during the driest months, the riverbed is practically dry. This change has altered the ecosystem associated with the river and reduced its traditional role in the life of the island.

Despite this, the Santa Eulària River remains a unique symbol of Ibiza and the Balearic Islands. It represents a connection to its agricultural past and serves as a reminder of the importance of water in island environments.
At the entrance to the municipality of Santa Eulària stands the Molí de Dalt, also known as Can Planetes, a traditional Ibizan house that houses a watermill of Andalusian origin, dating back to the 10th century and in operation until the mid-20th century. Currently, this space houses the River Interpretation Centre, the starting point of a route that allows you to discover the historical and cultural link between the river and the town of Santa Eulària.
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