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Fontanário da Rua da Arrábida
Water Point· 6 min from marina (451m)
This 19th-century public fountain on Rua da Arrábida has a cool backstory — it was built after a natural spring was accidentally discovered during construction of the riverfront pier. Remarkably, it's still fully functional after nearly 190 years, so you can actually turn the tap and get fresh water. Worth a quick detour if you're passing through the area.