This mermaid in the Spanish city of Leganés on the south side of Madrid was commissioned by the Leganés City Council. It was sculpted by Luis Arencibia Betancort, an artist from the Canary Islands, in 2000.
Betancourt’s sculptures adorn a number of locations in the Madrid area, where he lived and worked and was well known until his death in 2021.
The name of this particular sculpture is Sirena Leganés Inmaculada (Immaculate Mermaid of Leganés). Betancourt sculpted it entirely in bronze, and dedicated it to the city of Leganés, a suburb of Madrid six miles or so from the center of Madrid.
The mermaid rests atop a marble fountain in Plaza Inmaculada, contemplating the water flowing from a large clamshell into a 200 ft long basin with a couple small pedestrian bridges crossing it.
At the other end of the basin there is a large triangular extension of the plaza which has trees, playgrounds, and shaded seating for visitors.
I was able to visit in January of 2017 and get some additional photos and information, which I have included on the page dedicated to the Sirena Leganés Inmaculada.