Pamplona's Old Town Festival
Once a year, the old part of Pamplona has a kind of festival. People come from all over the Basque Country to take part at the end of May, on a Saturday afternoon.
There's singing, dancers, an occasional parade and various artisans selling their creations.
I found it to be a bit like the Haslemere Charter Fair in England which draws people from all over every 2 years.
From what I gather this goes on nearly all summer or until the end of the San Fermin Festival (more about that in July). There was even a Heavy Metal group playing in one small square the following Saturday.