Exploring the Emerald Isle by water
is a wonderful idea! It's great to see that you're such a big fan of canal boating, and I'd love to see what I can do to help you find a family-owned boat hire company.
I've been searching, and there is a lovely boat available for hire near Dublin called Anam Cara, that can take you inland along the waterways. You can reach out directly to Rent My Barge
for more information.
Then there is Riversdale Barge
Holidays, which is located in the Shannon Corridor, so perfect if you'd like to see Clonmacnoise. :)
I hope these were the suggestions that you were looking for, and I hope our other members will be able to provide you with even more tips!