Piscine d’eau de mer
▻http://alvarosizavieira.com/1966-leca-swimming-pools
▻http://www.e-architect.co.uk/portugal/leca-swimming-pools
▻https://en.wikipedia.org/wiki/%C3%81lvaro_Siza_Vieira
▻https://www.flickr.com/photos/gailontheweb/19231357279
Piscina das Marés, Leça da Palmeira
(Álvaro Siza Vieira)
Because of the need to limit construction costs and to preserve the landscape, the project had to make a minimal intrusion into the existing terrain. Since a topographical survey was not available at the time, the architect spent days marking the location of the existing rock formations, to arrive at a design which would require the least blasting.
The continuity of these walls with the existing topography and the level of the water in the pool which appears to be contiguous with the sea, create the illusion of a seamless transition between the man-made and natural.