Advice on day trips from Galway

Hello all! I’m looking for some advice on best day trips from Galway. My husband and I will be there for 5 nights from April 1st-5th celebrating our babymoon - so I will be in my 3rd trimester and unable to spend HOURS in the car. We are thinking 2 day trips in this time (maybe 3) and hoping to hear what would be fun? We like little towns, local shopping, love the outdoors (but hikes will need to be short and/or easy since I’ll be so pregnant), and are dying to see some castles. We anticipate one day to the Aran islands but is Inis Mor worth it or too overhyped? Open to other islands. We are spending time in Dublin before and after our stay in Galway as well. Thank you in advance!