We were there - Porto

Three years ago we visited Leça Swimming Pools by Alvaro Siza, north of Porto, Portugal.
Porto is a fantastic place to go for architectural visits (go if you haven't been!)
The pools were finished in 1966, but they have aged gracefully and do not feel decayed, despite the Atlantic oceans tough treatment.
The area is completely sunken down, out of view of the cityscape on the side and disconnected from the city, melting into the ocean as apart of it.
You are lead as in procession through the changing rooms, via a ramp down towards the ocean.
The pools are molded into the the cliffs with concrete of the same color as the stone, mixed with the natural water gatherings of the ocean side, it is sensational place.
I would love to revisit in the summer, it was early spring when we were there.

Photo credits: Camilla Levin

Photo credits: Camilla Levin

Photo credits: Camilla Levin