Try the Esplanade hotel, it's on the seafront.
Another vote for The Esplanade, the last of the beautiful Victorian hotels that graced the seafront in my youth.
Thank you all for your help! Sounds like it will be the Esplanade.
@happycamper - a couple of hours will almost put you on the west coast along The Wild Atlantic Way.
On the east coast nearer Dublin you could also consider Skerries, Malahide and Howth - all small Dublin suburban coastal towns. Further down the east coast Dunmore East
Is popular as well.