In Edinburgh, I walked the entirety of the Royal Mile, saw the castle, hiked through Holyrood Park up to Arthur’s seat, and then wandered over to the Princess gardens and saw Scott Monument.
Stayed at the Z hotel. Wandered through George Square, shopping on Buchanan street, took the subway to Byres road to see the Botanic gardens and walked the river walk.
Took a day trip via bus (about a 3-hour drive) to the Cliffs and Galway city. I booked this ahead of time through Viator. The cliffs are beautiful and very scenic.