My lad has just finished his A levels. I asked him where he would like to go for a post-exam trip. He said Dublin [1], so I've sourced a couple of cheap flights and a central hotel that is not too dear. Going for 4 nights, 7-11 July as I want to avoid the worst of the weekend migration of stag & hen groups. Bearing in mind we will be on foot or using public transport, what is worth visiting? What is to be avoided? [1] maternal grandfather, with Irish heritage, was very ill at the time, so he's been thinking about his roots. Even more poignant now, as the old boy croaked last week.