The Baily Lighthouse, visible from the route, replaced a 17th-century lighthouse and was the last Irish lighthouse to be automated in 1996.
The cliffs are composed of Cambrian-period sedimentary rocks, some of the oldest in the Dublin area, dating back approximately 500 million years.
Howth Head is a designated Special Area of Conservation (SAC) due to the presence of dry heath and vegetated sea cliffs.
The peninsula is a significant site for seabird colonies, including kittiwakes, guillemots, and razorbills, particularly during the spring nesting season.
The Green Route is specifically color-coded for navigability among the four distinct cliff walk variations in the area.
The Howth Cliff Walk Green Route is a dedicated 6-kilometer coastal trail spanning the northern edge of the Howth Peninsula in Dublin, Ireland. The path provides continuous views of the Irish Sea, the Baily Lighthouse, and the cliffs of the northern Dublin coastline. It begins near the DART station, traversing rugged terrain through heathland and clifftop edges. The route is part of a wider network of cliff paths maintained by the local authority, specifically designed for hikers seeking coastal geological features. Visitors encounter steep inclines and exposed cliffside sections that require caution during adverse weather. The terrain consists primarily of gravel and soil paths with minimal artificial protection. It is a natural geological site with no facilities or services located directly on the path. The trail circles the headland, offering perspectives of Dublin Bay and the Wicklow Mountains in the distance.
The elevated clifftop vantage point overlooking the Baily Lighthouse from the southern section of the trail.
Wear sturdy, waterproof hiking boots with good ankle support as the trail surface is uneven and often muddy.
Carry a windproof jacket even on clear days, as the coastal elevation results in significantly higher wind speeds than in the village.
Bring your own water and supplies, as there are no shops or vendors once you depart the harbor village area.
Do not wander off the marked gravel path onto the precarious clifftop edges, as the soft soil is prone to erosion and instability.
Keep dogs on a lead at all times to protect local wildlife and prevent accidents near steep edges; take all litter back to the village.
