Image San Fermin Marathon June. The EDP San Fermin Media Marathon has gathered in seven editions more than 18,000 registered Image San Fermín festivities July. All the practical information and programming of the San Fermin festivities from 6 to 14 July Image San Fermin Txikito September. Open-air dances, “gaita” flutes, “fanfarre” music parades, “charanga” music bands and “jota” songs in the Old District the last week-end of September.