Dublin Hiking & Trekking Guide 2026

Top trails

Routes worth lacing up your boots for.

1. 1

   Howth Cliff Walk

   9 km loop (~5.6 miles)2.5–3.5 hoursMax 170m / 558ft above sea level; ~350m / 1,150ft total ascent

2. 2

   Glendalough Spinc Ridge Walk

   10 km loop (~6.2 miles)3.5–4.5 hoursMax 510m / 1,673ft; ~430m / 1,411ft total ascent

3. 3

   Great Sugar Loaf Summit

   5 km return (~3.1 miles)1.5–2.5 hoursSummit 501m / 1,644ft; ~380m / 1,247ft total ascent from car park

4. 4

   Bull Island Nature Reserve Walk

   7 km return (~4.3 miles)1.5–2 hoursFlat; maximum elevation 5m

5. 5

   Wicklow Way — Dublin Section (Marlay Park to Glencullen)

   14 km one-way to Glencullen (~8.7 miles)4–5 hours one-wayMax 420m; ~550m total ascent from Marlay Park

6. 6

   Dún Laoghaire East & West Pier Walk

   5 km round trip (both piers)1–1.5 hoursFlat

Trail difficulty levels

Pick a route that matches your fitness and experience.

When to hike

Seasonal conditions in Dublin.

Spring (March–May)

Season Spring (March–May), Notes Best for wildflowers in Wicklow; trails can be muddy; long days increasing toward summer; avoid peaks if snowpack remains on Lugnaquilla in early March

Summer (June–August)

Season Summer (June–August), Notes Long daylight (up to 17 hours); warmest; popular trails (Glendalough, Howth) crowded at weekends; mountain weather can change rapidly even in summer

Autumn (September–November)

Season Autumn (September–November), Notes Excellent photography conditions; golden heather; fewer people; shorter days from October — start hikes early

Winter (December–February)

Season Winter (December–February), Notes Short days (7–9 hours light); mountain tops can have ice/snow; coastal walks enjoyable; waterproof and warm layers essential

Local hazards

What to watch out for on the trail.