Any recommendations for Ireland for a couple in their 60s?

We’re a couple in our early 60s finally planning the Ireland trip we’ve talked about for years. We’d love a route that isn’t too rushed - manageable days and a good mix of the cities and the countryside. For those who’ve been at a similar stage, what would you recommend we build in?

My in-laws recently took an organized trip with Insight Vacations and they raved about it for weeks! They loved that they had amazing service, the group was very fun and they had a lot in common with others in the group, and took some amazing pictures.

I found the link to the trip! Country Roads of Ireland (Classic, End Dublin) by Insight Vacations with 15 Tour Reviews - TourRadar