Come up 'North'!
A very easy 2 hr drive takes you Dublin-Belfast.
Take a day and night in Belfast, then tour up the North Coast of NI with a night in Bushmills and a coastal lap of Donegal over 3 days, just fabulous in May!
So many very pretty towns and villages to pass through and stay in, a lot less 'touristy' than doing the Dingle thing.