There is a hop on hop off bus service in Liverpool with a live commentary (not a recording with earphones) and our guide was very funny. However, there is not a lot to do or see in Liverpool unless you are a Beatles fan and even then it is limited. Retail shopping is the main attraction. It rained for most of the day.
Dublin is a very lively place packed with interesting history and people. The main attraction is the night live in the various pubs however for that we would need an overnight stay which we did not have. Again the hop on hop off bus service was very good and reasonably priced.