Museu del Port de Tarragona

Housed in a stunning former warehouse on the waterfront, this museum digs into how the sea has shaped Tarragona over the centuries — from its Roman trading roots to the bustling modern port outside the door. You'll get an honest, atmospheric look at the hard realities of life aboard working vessels, alongside the broader maritime and port heritage that defines the city. It's a surprisingly absorbing stop that most people walk straight past.