okay, I will begin with some suggestions and I know others will give you some ideas too!
Near A Coruña you should go to the town of Betanzos
Betanzos virtual for some photos, and
here for some background in English. It is especially nice for the Fiesta de San Roque ( not sure of the date...but I think it is in August) the fiestas are great there.
If you can swing down to Lugo you can walk on the
Roman wall that surrounds the old part of the city.
Another must-see would be Santiago de Compostela. And if you could go to Cabo de Finisterre to see "the end of the earth" it is absolutely gorgeous.
photos of Finesterre There is a beginning...have fun! Galicia is THE most beautiful part of Spain...
esperanza
(can you tell that my roots are in Galicia?
)