Best Dublin Day Trips

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The best Dublin day trips leave from a central station. Howth, Dalkey, Bray, Malahide, Kilkenny and Belfast all run on rails. Glendalough, Powerscourt and Newgrange need a bus, a tour or a car, so pick one place per day and check the timetable the night before.

One rule travels with us on any city trip. The best day out of a capital is the one you can reach without renting anything. A small day pack beats a roller bag, and our carry-on only packing list covers most of what a day out needs.

We have done train-and-walk days like this with nieces and nephews along. The workable plan is one big stop and one short one.

Best Day Trips from Dublin

I would start with the DART coast if you only have one free day. Add Kilkenny or Glendalough if you have a second. Howth, Dalkey and Bray need no booking and no car. For the city days around them, our Dublin itinerary lays out three days in Dublin itself.

Belfast is the long one. Newgrange is the one that punishes anyone who does not book ahead. Every hour, fee and rule in the table was read on an operator’s own page on 3 October 2026, and the rail times come from Irish Rail’s timetable PDFs.

Trip	Transport	Time one-way	Booking	Cost
Howth	DART	Under an hour; check the timetable	None	Rail fare; the cliff path is free
Dalkey	DART	About 20 to 30 min	None	Rail fare
Bray and Greystones	DART	Under an hour; check the timetable	None	Rail fare
Malahide Castle	DART or Dublin Bus 32 and 42	30 to 35 min by rail	Online ticketing	Price on the castle’s booking page
Powerscourt	Bus 44 or car	45 min to an hour by bus	Tickets online	Waterfall €8.00
Glendalough	Bus route 181 or car	Check the route 181 timetable	None for the valley	Monastic site €5.00 adult
Newgrange	Car or coach tour	Varies by route	Online, required	Price in the 2026 charges PDF
Kilkenny	Irish Rail from Heuston	1 h 27 to 1 h 52	None for the train	Castle €8.00 self-guided adult
Belfast	Enterprise from Connolly	2 h 08 to 2 h 18	UK ETA needed	ETA £20; rail fare

Rail fares are not in the table because they change by date and ticket type. The Journey Planner on irishrail.ie prices your exact trip.

Day Trips from Dublin by Train

The DART is the easiest way out of the city because it is a commuter line. Irish Rail’s DART timetable, valid from 20 April 2026, runs north to Howth and Malahide. It runs south through Dalkey and Bray to Greystones.

Trains are frequent at peak and thinner off-peak. Read the last departure before you leave the station. On 3 October 2026 the Irish Rail homepage also flagged a revised autumn timetable because of leaf fall, so an old timetable is out of date.

Howth Cliff Walk

Howth is the end of the northern line. The cliff path loops round the headland past the Baily Lighthouse, and a few hours goes quickly because you keep stopping to look.

The headland is exposed. A thin windproof layer earns its place in the day pack even when Dublin is sunny.

Bray to Greystones Cliff Walk

The cliff path between Bray and Greystones runs along the slope above the DART line. That makes the train your way home from either end. Walk from Bray and ride back from Greystones, or do it the other way round.

Dalkey is the shortest hop on the same line, roughly 20 to 30 minutes from the city. It works as a half day if the weather turns.

Malahide Castle

Malahide Castle’s own site gives 30 to 35 minutes by rail from the city centre. The castle is roughly a ten-minute walk from the village, and Dublin Bus routes 32 and 42 also serve it.

The castle is open daily from 9.30am to 5.30pm on its homepage, and the site suggests at least two hours for a visit.

Day Trips from Dublin to Kilkenny

Kilkenny is the easiest full-day trip that is not on the commuter line. Irish Rail’s Dublin Heuston to Kilkenny timetable, valid from 14 December 2025, shows weekday trains taking roughly 1 hour 27 minutes to 1 hour 52 minutes. The earliest Sunday train leaves at 09:10, against 07:20 on weekdays.

Heritage Ireland lists self-guided tours of Kilkenny Castle at €8.00 for an adult. October to March hours are 9:30 AM to 5:00 PM, with last admission at 4:30 PM. Work backwards from the last train home before you book a guided tour.

Day Trips from Dublin to Belfast

Belfast works as a day trip if you leave early and accept a long day. Irish Rail’s Dublin Connolly to Belfast Grand Central timetable, valid from 14 December 2025, shows weekday trains at about 2 hours 8 minutes. It lists 15 northbound departures on weekdays and 8 on Sundays.

The same page says public holidays run to different timetables. Check the last southbound train before you commit to dinner.

Belfast sits in the UK. The UK government’s ETA guidance prices an electronic travel authorisation at £20. Per the State Department’s UK page, updated 20 August 2026, U.S. citizens visiting for tourism need one before travel.

Neither page sets out a separate rule for crossing from Ireland. Confirm the current rule on gov.uk before you book.

Day Trips from Dublin to Glendalough

Glendalough is the walking pick of the Dublin day trips, and the round tower is the classic photo. The national parks page lists route 181 from Dublin city centre. It lists parking at the Visitor Centre, the Upper Lake and Laragh.

The Laragh car park is free and staffed from 8 a.m. to 8 p.m. The same page warns against parking on the narrow valley road, because it can block emergency access.

Heritage Ireland puts the monastic site at €5.00 for an adult. From 15 October the winter hours of 09:30 to 17:00 apply, with last admission at 16:15. The site is closed 23 to 29 December.

Parking at the Visitor Centre car park includes one free admission. The park lists nine waymarked trails, and the Spinc boardwalk needs boots and some fitness. A car or a coach tour gives you more walking time than the bus.

Is Powerscourt worth visiting?

Yes, if gardens and a waterfall are your idea of a day out. Powerscourt’s own page gives about 19 km and roughly 30 minutes by car from the city centre. The 44 bus runs to Enniskerry village in about 45 minutes to an hour.

Gardens are listed 09.30 to 17.30, with last entry 30 minutes before close. The waterfall has its own hours of 10:30 to 17:30, last admission 17:00, at €8.00, paid on arrival.

The homepage showed €14.00 on the date checked. That price was attached to a Wonder of Trees event, so read the standard garden price on the booking page.

Can you visit Newgrange without a tour?

No, not at the monument itself. The Heritage Ireland page for Brú na Bóinne says visitors go by shuttle bus from the visitor centre. It says pre-booking is essential and warns you not to go directly to the monuments, because you will not gain entry.

The visitor centre alone does not need a booking. Every visitor, children and infants included, needs a ticket for the monuments.

Tickets come only from the official online system. The page warns that no third-party seller is authorised and their tickets will not be valid.

From 1 April to 1 November the booking window is 30 days ahead. From 2 November to 31 December it is 7 days ahead, and tickets are released at midnight Irish time. The admission prices sit in the 2026 charges PDF on the same page.

The page lists October to December hours as 9:00 to 4:15. It lists closures on 24 to 27 December and 1 January. A car or a coach tour is the easy way to reach it from Dublin, and either one still needs a ticket for your slot.

Dublin Day Trips Without a Car

You can reach the coast, Kilkenny and Belfast on rail alone. Irish Rail’s Leap Card page says the card works on rail in the Dublin City and Commuter Zone and the Cork Commuter area. It says Leap saves up to 24% against cash fares.

For Kilkenny and Belfast, buy through the Journey Planner. Irish Rail says booking online in advance gets the lowest web fares.

On entry, the State Department’s Ireland page, updated 26 March 2026, says U.S. citizens need no visa for 90 days or less. It asks for a passport valid for the length of the stay. Carry the same passport on the Belfast leg, and pack the day bag from our carry-on backpack guide. If a rail-first plan appeals for another trip, our Switzerland itinerary follows the same idea.

Day Trips from Dublin in Winter

Winter hours are what change. Glendalough and Kilkenny Castle both close at 17:00 from mid-October. Brú na Bóinne closes at 4:15, and several sites shut for the Christmas stretch.

Start early, and put the long trips on weekdays because Sunday timetables are thinner. Met Éireann publishes the Dublin forecast and any weather warnings. Check it the night before, and again at the station.

Dublin Day Trips FAQ

Is Kilkenny worth a day trip from Dublin?

Yes, if you want a castle and a walkable town. Weekday trains take roughly 1 hour 27 minutes to 1 hour 52 minutes each way. Kilkenny Castle lists self-guided tours at €8.00 for an adult on heritageireland.ie.

Do I need an ETA to go from Dublin to Belfast?

Probably, for U.S. passport holders. The UK government prices an ETA at £20. The State Department says U.S. citizens visiting the UK for tourism need one before travel, so confirm the current rule on gov.uk before you go.

Does the DART take Leap cards?

Yes. Irish Rail says Leap Cards work on rail in the Dublin City and Commuter Zone, which covers the DART coast.

Is Glendalough worth visiting?

Yes, for the monastic site and the valley walks. Heritage Ireland lists the monastic site at €5.00 for an adult. The winter hours of 09:30 to 17:00 apply from 15 October.

Prices are approximate, current as of publication, and change frequently — confirm the latest price with the retailer before buying.

Published October 23, 2026.