it's breath-taking! Basically it takes more time than travelling to Dun Laoghaire but it's worth the effort. This place is Dalkey: (from Wiki) Dalkey  ( Irish :  Deilginis , meaning "thorn island") is  suburb  of  Dublin  and  seaside resort  in  Dun Laoghaire-Rathdown  County,  Ireland . It was founded as a  Viking