The arts were Huneeus Gana's great devotion, especially music, painting, and poetry. He was a significant collector of paintings. As a journalist he collaborated on two newspapers, "La Patria de Valparaíso" (a daily published from 1 August 1863 to 1896) and "La Ley" (which he edited from its foundation on 10 June 1884, under the pseudonym "Suaviter in modo"). During the Revolution of 1891 he was editor of the "Official Bulletin of the Government Junta".