Will the festivities be only on Saturday, Sept. 15, this year? Or will there be festivities throughout the week, with the most picturesque on Sept. 15? And if so, when on that day, morning, early afternoon, evening? We unfortunately likely will have to depart Salta on Sept. 15, in the afternoon at the latest, and so we may not have much of a choice here, but we would like to see if we can optimize our flights somehow so as to observe as much of the festivities as we can. Thank you!