Festival de la Yerba Mate in Bella Vista
Bella Vista, in Itapua department, is widely recognized as tied to Paraguay's yerba mate growing tradition, and the region hosts related agricultural and produce events, but a specifically named, independently documented annual Festival de la Yerba Mate with its own edition history could not be confirmed among available sources during this research.
Yerba mate is not a niche crop in Paraguay, it underlies one of the country's most universal daily customs, tereré, the cold infused drink shared from a guampa gourd through a bombilla straw across social gatherings nationwide.