Irish culture has an amazing variety of old "feasts," traditions, customs and historic legends. Many trace all the way back to Roman times.
Some - like the Wren Day in Dingle - are now celebrated in just one slightly out-of-the-way place. The pancake festival of Shrove Tuesday, on the other hand, is still pretty widely observed across Ireland (this oddball feast is linked to "Fat Tuesday" in New Orleans). Enjoy! -Robert Sullivan