Today the streets of Lisbon were painted blue with figures marching and dancing.
The Martha Azul (Blue March) stepped out across Lisbon with a host of locals joining in.
The Police uniforms blended into the blue theme.
Later the march merged with a rave organised by Rave Revolution.
The rave featured creatures, banners and placards developed in a Lisbon workshop with help from Ocean Rebellion.
Photos: João Daniel Pereira.