Hooray!
we reached the #lake with its curious #attraction Covão dos Conchos, which looks like a bathtub drain.
In the media it's described that it gives the impression of a surreal portal that seems to lead directly into the earth's core or another world...
Actually it's a man-made tunnel constructed in 1955. The purpose of the tunnel was to redirect water from Ribeira das Naves to Lagoa Comprida.
#CovãoDosConchos #SerraEstrelaNaturalPark
#Portugal