Religious activities in Respaldiza Thursday, May 26 12:00 Burbustu (Biscay) 24 Kms. Fiesta of Burbustu 2022 Mass. You might be also interested in: Religious activities in Biscay (1) Religious activities in Cantabria (1) Religious activities in the province of Valladolid (4) Religious activities in the Community of Madrid (22) Religious activities in the province of Valencia (2)