Twelve of Torres Vedras’ beaches are the first in the world to have a signage system for colorblind swimmers. Developed by the Portuguese company ColorAdd, the recycling and trash containers, as well as the flags are now designed based on an international system of color identification specially made for the colorblind. 

Designer Miguel Neiva came up with the idea in 2000, but was only in 2008 that the research project was completed and the color identification code for colorblind people spread to 60 countries. However (and for now) the only beaches around the world with the signage system are Azul, Santa Cruz Centro, Física, Formosa, Mirante, Navio, Pisão, Santa Helena, Santa Rita-Norte, Santa Rita-Sul, Foz do Sizandro e Porto Novo.