Rainy days in Ireland

The last few weeks has shown just how poor Irish summers can be. Some times we may struggle to find something to do when it rains a lot. Are there enough activities and attractions for tourists to take part in around Ireland that are not weather dependent?

Yes, there are plenty of activities/attractions that aren't weather dependent
No, we struggle to find anything to do when it is raining for prolonged periods, please give us more attractions/activities under cover