Carnival 2019 - Castro-Urdiales from March 1 to March 9. Past days. Friday, March 1 Saturday, March 2 Sunday, March 3 Friday, March 8 Saturday, March 9 You might be also interested in: Carnival 2019 - Algorta (Biscay) - 26 Kms. Carnival 2019 - Sondica (Biscay) - 37 Kms. Carnival 2019 - Bilbao (Biscay) - 39 Kms. Saint Joseph 2019 - El Astillero - 69 Kms. Carnival 2019 - Camargo - 74 Kms.