This dataset contains a curated collection of photographs documenting the celebration of Día de Santa Thecla, focusing on public rituals, processions, devotional practices, and festive elements associated with the feast. The images were produced as part of ethnographic and visual documentation of local religious culture and collective memory. Photographs capture material culture, spatial settings, and performative aspects of the celebration. When necessary, identifiable individuals have been photographed in public contexts, and images are intended for scholarly, educational, and non-commercial use.