The 7 Best Day Trips From Dublin

Every trip below starts in Dublin city centre and can be finished in a single day. We ordered them roughly by travel time, from a quick coastal loop to a long haul into Northern Ireland. Distances and journey times reflect current train, bus, and driving figures, though schedules shift, so confirm before you travel.

Howth stays the simplest option if you only have a few free hours. Our Howth day trip guide breaks down market hours, the loop trail, and where to eat by the harbour.

Prefer company on the trail instead of going alone? The Dublin Coastal Hike & Pints tour covers the same coastline with a guide and ends at a pub.

1. Glendalough and the Wicklow Mountains
   • Wicklow sits about an hour south of Dublin, reachable by car, tour bus, or coach.
   • Glendalough's monastic site dates to the sixth century, with a round tower and two lakes.
   • Budget at least half a day, though a full day allows a drive over the scenic Sally Gap.
   • Hikers and history fans get mountain views and medieval ruins within the same short trip.
2. Howth
   • The DART train reaches Howth from Dublin city centre in about 30 minutes.
   • The Howth Cliff Path Loop covers six to ten kilometres and takes two to three hours.
   • Fresh seafood at the harbour and a weekend market give you a reason to linger.
   • It remains the simplest half-day escape for anyone short on time or energy.
3. Malahide Castle
   • DART or suburban rail reaches Malahide station in roughly 25 to 30 minutes from the city.
   • The 800-year-old castle rooms sit beside a walled Victorian garden and wide open parkland.
   • Families often spend two to four hours here between the tour and the grounds.
   • It suits travelers who want an easy half day without much advance planning.
4. Bru na Boinne and Newgrange
   • The Boyne Valley sits about 45 kilometres north of Dublin, roughly a 45-minute drive.
   • Only the visitor centre shuttle reaches the actual mounds, so a car alone won't get you inside.
   • Newgrange's passage tomb predates the pyramids and aligns precisely with the winter solstice sunrise.
   • Shuttle slots for 2026 sell out fast in summer, so book your visit well ahead.
5. Cliffs of Moher, a long day out
   • Expect a three to three-and-a-half hour drive or coach ride each way from Dublin.
   • Round trip travel plus sightseeing time adds up to roughly 12 to 13 hours total.
   • The cliff-top trail and nearby Burren limestone landscape reward the long haul.
   • An organized coach tour beats two long drives if you'd rather rest along the way.
6. Kilkenny
   • A direct Irish Rail train from Heuston Station takes about 90 minutes to Kilkenny.
   • The medieval mile walk links Kilkenny Castle, old churches, and craft shops in one route.
   • Plan half a day for the highlights or a full day if breweries and galleries interest you.
   • It offers a walkable medieval town without the crowds found in central Dublin.
7. Belfast and the Giant's Causeway
   • The Enterprise train runs from Dublin Connolly to Belfast Central in about two hours.
   • An onward coach or tour continues to the Giant's Causeway, adding several more hours.
   • Combining both cities in one day usually means 12 to 14 hours of travel and touring.
   • It's the only realistic way to see Northern Ireland's two biggest draws without an overnight stay.

Getting There: Trains, Buses, and Rental Cars

Dublin's DART commuter line is usually the fastest and cheapest way to reach coastal towns like Howth and Malahide. Longer trips such as Kilkenny or Belfast run on Irish Rail's mainline services from Heuston or Connolly station. Fares stay modest compared with a guided tour, though schedules shift seasonally, so confirm times before you leave.

Bus Eireann and private coach operators fill the gaps that rail doesn't reach, including Glendalough, Newgrange, and the Cliffs of Moher. A guided coach tour usually costs more than public transport but removes the hassle of planning connections. For travelers without a car, Dublin bus tours bundle transport, commentary, and entry fees into one ticket.

Renting a car makes the most sense for Glendalough, Malahide, and Newgrange, where transit stops sit a longer walk from the sights. Driving in Ireland means narrow rural roads, roundabouts, and staying on the left, which catches out plenty of first-time visitors. For the Cliffs of Moher or Belfast, a train or organized tour usually beats a long, tiring return drive. Skip the car entirely if your day involves any drinking, since rural roads and pub stops don't mix well with driving.

Where to Base Yourself and When to Go

Staying near Dublin's city centre keeps you within a short walk of Connolly, Heuston, and the DART line. Areas close to the Liffey or the Docklands work well if you're catching an early coach pickup. Our Dublin's neighbourhoods compares options if you haven't chosen accommodation yet.

Late spring through early autumn brings the longest daylight, useful for full days like the Cliffs of Moher or Belfast. Winter trims daylight sharply, so plan an early departure if your trip involves a long drive. Shoulder months such as May and September often mean thinner crowds at Glendalough and Newgrange without losing good weather. Our guide to the best time to visit Dublin without crowds lines up these seasonal patterns with specific trips.

How to Pick the Right Day Trip for You

History and archaeology fans usually get more from Newgrange or Glendalough than from a coastal walk. Families with young kids tend to do best at Malahide Castle, where the grounds leave plenty of room to wander. Anyone who wants castles and a walkable centre without a long drive should look at Kilkenny first.

The most common mistake is booking the Cliffs of Moher or Belfast on your only full day in Dublin. That single trip alone can swallow 12 hours or more once travel and touring are added up. Save the long-haul trips for later in your stay, once you've already covered central Dublin on foot. Two shorter trips, like Howth one day and Malahide the next, often beat cramming everything into one exhausting outing.

Newgrange requires a timed shuttle booking through the visitor centre, and 2026 summer slots sell out days ahead. Coach tours to the Cliffs of Moher and Belfast fill first on weekends, so book at least a week out in peak season. Independent trips by DART or rail rarely need advance booking beyond a ticket bought that morning.