Hello Toni,
Super to hear that you are planning to visit us in June. The amount of you time you will spend in Ireland is plenty to do all you hope to do. If your port of entry/exit is Dublin, it could make sense to have a couple days there to stretch your legs before travelling further to Cliffs of Moher, Cork etc. This could also work well the other way round before embarking on your journey back home.
A good way to kickstart your planning is to take a look at this extensive
Ireland Guide which contains handy information about many aspects from preparing for your journey to trip ideas. There are plenty of different options for
accommodation, including
castles. Have you considered your preferred method for getting around the island yet? I would be happy to provide more details about the various options if you tell a bit more about your preferences.
There is plenty to see and do in
Dublin. As you are planning to spend a limited amount of time in the city, you could take a look at this
72h trip idea.
Cliffs of Moher are roughly a 3,5h drive from Dublin. It's not far from picturesque Galway City so you could consider adding that to your itinerary.
Co. Cork is just a short drive in South-East with plenty of activities to choose from, including the famous
Blarney Castle near Cork City. With over
3000 castles dotted around the island of Ireland, there's sure to be something along your preferred route.
I hope this gets you off the ground but I'd love to give more pointers based on your preferences.
Cheers,
Lauri