I have three full days and one half day in Dublin in mid-September. I have been to there before, so I was only planning on spending one full day and the half day in Dublin itself. I am planning one day trip to Glendalogh, Powerscourt, and Bray. I don't know for sure what I want to do with the second day, but was thinking Waterford might be interesting. I know it's a bit farther than an average day trip, but I've done Galway as a day trip before and It looks like Waterford is a little closer than that. I don't know much about Waterford, but seeing the glass making would be pretty neat. Is it worth the time and effort to get down there?
Any suggestions of other good day trips from Dublin? We'll have seen lots of castles, cathedrals, and ruins in England, Scotland, and Dublin so I'm looking for something a little different. Much thanks for any suggestions; I'm feeling a little overwhelmed with planning at the moment!