Write to San Blas
San Blas is both a municipality and municipal seat located on the Pacific coast of Mexico in the state of Nayarit. San Blas is a port and a popular tourist destination, located about 100 miles north of Puerto Vallarta, and 40 miles west of the state capital Tepic. The town has a population of 8,707.
San Blas was founded in 1531, but the official date of founding is 1768, when Don Manuel Rivera and 116 families arrived on the orders of the Viceroy of New Spain, Marqués de Croix, under the supervision of José de Gálvez, who was visitador general (“inspector”) of New Spain.
San Blas was the port from which the Spanish priest Junípero Serra, Father President of the California Missions, departed for California. He left on March 12, 1768 from the nearby Las Islitas beach on Matanchen Bay, in the locally built barque Purísima Concepción.
(Information Provided by: Wikipedia)