Museu de la Mar de l'Ebre

Housed in a 19th-century industrial building that once belonged to the Real Compañía de Canalización del Ebro (1857–1858), this small museum sits right by the fishing port at the gateway to the Ebro Delta. It covers the biological richness of the Ebro Sea, local navigation history, and the river's ecosystems — though fair warning, it's a compact visit and you'll likely see everything in under half an hour. Worth a quick stop if you're curious about the delta's natural and maritime heritage, but don't expect to spend the afternoon here.