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In Zierbena there are as many festivals as there are districts in the municipality. Each festival is related to a district's church.
| Date |
Festival |
| Week before 31st July |
Kardeo |
| 31st July |
San Ignacio de Loyola (La Arena) |
| 7th August |
San Mamés |
| 15th August |
Virgen del Puerto (El Puerto) |
| 16th August |
San Roque (La Cuesta) |
| Last weekend in August |
Valle |
| 15th October |
Zierbena's Independence Day |
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