Luso is a small town just north of Coimbra famous for one thing in particular: water. Agua de Luso is synonymous with good quality mineral water in Portugal, and thousands of bottles are consumed daily across the nation. It flows freely from fountains and springs in the town and is also renowned for its healing qualities, hence the fact that Luso is one of Portugal’s most important spa towns. The hypotonic and radioactive qualities of the water have been hailed as cures for all manner of ailments, from skin conditions to kidney function and most specially artery flow issues, since the 18th century. The summer months see the main flux of visitors looking to benefit from the thermal baths.