Festivities of invierno de Ariño (San Blas) Activity · Ariño, Andorra-Sierra de Arcos, Teruel Image of Ariño, not of the place itself. As in other villages of Andorra-Sierra de Arcos, in Ariño bonfires are lit both for San Antón and for San Blas, on 3 February, in a municipality whose modern history is tied to the mining of the Santa María pit. Photo: B25es (CC BY-SA 4.0) What to see and do in Ariño