The Day of Cantabria (Día de Cantabria) celebrates the history, culture and language of the Cantabrian region of
Spain. It is on the second Sunday of August, but is not a public holiday.
The mayor of Cabezón de la Sal originally proposed that the Day of Mountains (Día de La Montaña) should celebrate
the culture and history of Cantabria on the second Sunday in August. Following from this proposal, the day was
first celebrated in 1967. The Day of Mountains was declared an event of "National Tourist Interest" in 1971 and
"Special Regional Interest" in 1983. Following the establishment of the autonomous community of Cantabria in
1982, the event became known as the Day of Cantabria.