One of the greatest poets of the Portuguese language, Sophia de Mello Breyner spent a great part of her childhood by the sea at Praia da Granja which would influence much of her poetic work. Thalassa! Thalassa! The sea and the Mediterranean in the work of Sophia de Mello Breyner Andresen bring together works from the Caixa Geral de Depósitos Collection with the writer's words. A game of mirrors between the works of names such as Júlio Pomar, Menez, Julião Sarmento, João Hogan, Paulo Nozolino, José M. Rodrigues or António Ole and about 25 poems here presented in a Greek translation.