The family of OrtÃ zar Cuevas , from the San Antonio de Petrel Hacienda , made a mid-century maritime dock which was as a fishing port for some years . The family of Daniel OrtÃ zar , inheritors of the hacienda San Antonio de Petrel , constructed a dock in 1875 , which served as a fishing port for a few years , and would be decreed as a `` minor dock '' by President JosÃ Manuel Balmaceda in 1887 .