The Wicklow Way - Clonegal to Dublin - Walking 132km through the Garden of Ireland.
Walking the Wicklow Way from south to north would be my preferred choice as it leaves the best until last, in terms of scenery. There's two days of walking in lowlands on the southern end, so its nice to get that done first. From there on you will have stunning landscapes, mountains, valleys, lakes, waterfalls, and finally crossing through the vibrant colours of furze and heather on the Dublin mountains. Arriving in Dublin, with weary legs, you will have plenty of options for transport, food, and accommodation.
My journey was broken into five stages:
Clonegal - Dying Cow Pub
Dying Cow Pub - Iron Bridge
Iron Bridge - Lugduff (above Glendalough)
Lugduff - River Dargle (Glensoulan valley above Powerscourt)
River Dargle - Dublin.