I will be in Dublin next month with two adult daughters. We want to see Dublin and visit the usual sights. A HO-HO bus seems to go to or very near the major sights, but it is expensive, and you have to do the loop to get places. I had a knee replacement three months ago and cannot walk as far as I used to. I can walk and am not disabled, but I won't be doing any marathons or sprinting either.
How is public transportation in Dublin? It is easy to navigate? Is there an app that might make it easier?