Dún Laoghaire (pronounced "Dunleary") is a port and commuter town 10 km south of Dublin. It's historically in County Dublin, which has been divided so the town is now in Dún Laoghaire-Rathdown County. In 2016 the population was 26,525.
The port was a 19th century creation, renamed "Kingstown" for the 1821 visit of King George IV. Dublin itself was the traditional port, but the approach was hazardous, with several tragic shipwrecks. An alternative harbour was sought and Howth and Dún Laoghaire competed for this role. Howth lost out because it kept silting up, so for almost 200 years Dún Laoghaire was the main port of entry to Ireland, with ferries from England and Wales, and connected to the city by Ireland's first railway. In the early 21st century Dublin regained its role with greatly improved docks and approaches, and a motorway tunnel so that vehicles could bypass city congestion. The ferry terminals moved there and Dún Laoghaire harbour became much quieter, though cruise liners sometimes call.
Dart trains run every 10 mins or less from Malahide and Howth through central Dublin (Connolly, Tara St and Pearse stations) and the southern suburbs to 1 Dún Laoghaire Mallin Station. The trains continue south to Dalkey, Bray and Greystones. All these stations are within the Dublin "short hop zone" so the standard flat fare is €3.30 adult single, €6.25 day return, €2.40 single with LEAP card.
Four or five mainline trains per day call on the route between Dublin Connolly, Wexford and Rosslare, which has ferries from Fishguard and Pembroke.
From Belfast, Newry, Drogheda or Sligo, change at Connolly for the Dart train. From other cities (eg Galway, Limerick or Cork) trains run to Dublin Heuston, take the tram to reach Connolly.
Dublin Bus 46a runs here from city centre every 10 min. The route is from Phoenix Park, Dublin Northside through Phibsborough, O'Connell St downtown, then south via Leeson St, Donnybrook, and Stillorgan Rd (N11) to Foxrock then turning up Kill Lane, Mountjoy and York Rd to Dún Laoghaire railway station.
Aircoach 703 runs hourly between Dublin Airport and Dún Laoghaire, stopping by the Royal Marine Hotel, and continuing to Dalkey and Killeney. It's scheduled to take an hour but is often snarled in southside traffic. Aircoach 702 from the airport to Bray and Greystones runs further inland via Cabinteely and Loughlinstown.
Inter-city buses bypass Dún Laoghaire so you have to travel into central Dublin and come out again. The closest approach is by the bus from Wexford, which calls at Loughlinstown 4 km south, you could pick up a local bus or taxi there. But the train would bring you to town centre.
Irish Sea ferries no longer come here, but you can still arrive old-style by Dublin Bay Cruises. They have daily sailings to Dublin and to Howth, landing at Dun Laoghaire's east pier. To Howth, they sail mid-March to September at 12:30, taking an hour, with views over Dalkey Island, Clontarf, Bull Island, Baily and Kish Lighthouses, Howth Head, Ireland's Eye and Lambay Island. The return sailing (from Howth west pier) is at 15:30. An adult single is €25, which includes a voucher to return by Dart train for only €2 if you don't sail back.
The sights are all within walking distance.
- 1 Dún Laoghaire Harbour has become a pleasant place to stroll since the ferries moved into Dublin. There are two long granite piers, the east and the west, with the shorter Carlisle and St Michael's piers in the middle. A plaque here commemorates the original Laoghaire, a 5th century High King who used this as a sea base for raiding Britain and Gaul.
- 2 National Maritime Museum of Ireland (Músaem Mhuirí Náisiúnta na hÉireann), Haigh Terrace, ☏ . Daily 11:00-17:00. Situated in the former Mariner's Church. Exhibits include the Optic from the Bailey Lighthouse at Howth. Adult €6, child under 12 €3, family €12.
- 3 Moran Park. In front of the Maritime Museum, centred around the sculpture "Christ the King." In 1898 Moran Park House was an early receiver of a wireless test transmission when Marconi himself sent reports of the local Regatta to this building for newspaper publication. He often experimented in Ireland: his mother was one of the Jameson whiskey family.
- 4 People's Park, Upper George's St. Beautifully laid out with different flower beds, this Victorian park has a children's play area and Tea Rooms. It's enclosed by wrought iron railings and gates, and two magnificent cast-iron fountains. A market is held here every Sunday 11:00-16:00 year round. Free.
- 5 James Joyce Tower and Museum (Túr agus Músaem Shéamuis Seoige), 17 Sandycove Point (1 km south of Dun Laoghaire on the coast road), ☏ . Daily 10:00-18:00. The Martello tower with its gun platform and living quarters remain much as Joyce described it. The Museum's collection includes letters, photographs, first and rare editions and personal possessions of Joyce as well as items associated with the Dublin of Bloom. First editions of most of Joyce's works are displayed, including the original Ulysses published by Shakespeare and Co in 1922. There's also one of two plaster death masks of Joyce by sculptor Paul Speck. Free.
- 6 Cabinteely (Cábán tSíle, "Sheila's Cabin") is a parkland suburb 4 km south of Dún Laoghaire. Its main sights are the 18th century Cabinteely House, occasionally open for events, and two 12th century Celtic High Crosses. Cabinteely is about 2 km from the Luas tram Green Line.
- Sandycove beach and the Forty Foot Deep are next to the Martello tower; there's a small beach with lifeguards. The "Forty Foot Deep" is traditionally a male nude bathing area, featured in Joyce's Ulysses. In the 1970s female activists successfully campaigned for the right to get equally cold and miserable here, albeit not as shrivelled. You can even scuba-dive in the Deep, where Dublin Bay Prawns and various squidgy-widgy things wave unfriendly limbs at you, but don't take a flying leap off the jetty before checking the depth below. The name refers to the height of the Martello tower rather than the tidal sea depth, which is tidal, and in 2004 the city council was found liable when someone seriously crocked themselves on a rocky outcrop by trusting to the name "Forty Foot Deep".
- Pavilion Theatre, Marine Rd (By station), ☏ . M-Sa 12:00-17:00. Has theatre, cinema, dance etc.
- 1 Cabinteely FC. They play football (soccer) in the League of Ireland First Division, the Republic's second tier. Their usual stadium is Stradbrook Road (capacity 1600) at Blackrock College. The playing season is March-Nov with games usually on Friday evenings.
- O'Briens Wine, Unit 3, Pavilion II, Marine Road (By Station), ☏ . M-Sa 10:30-22:00, Su 12:30-22:00. Choose from 800 wines & a wide range of beers and spirits. Wine from €8.
- RNLI Shop, 2 Queen's Rd A96 T447 (by Harbour), ☏ . M-F 10:00-17:00; Sa Su 14:00-17:00. Official gift shop for the Royal National Lifeboat Institute.
- People's Park Market: Sunday 11:00-16:00, see above.
- Cornelscourt Shopping Centre, Bray Rd, Cabinteely, ☏ . 07:00-23:00. Contains a large Dunnes Stores (food, clothes, off-license and homeware), an optician, café, hair salon, pharmacy and newsagents. Free indoor/outdoor parking.
- George's Street is main drag, with a slew of the usual high street choices.
- Harry's Cafe Bar, 21 Upper George's St, ☏ . M-Sa 09:00-16:00, Su 10:00-16:00. Great breakfast & lunches. Raspberry or Blueberry muffins are recommended.
- 1 Teddy's Ice Cream, 1a Windsor Terrace, ☏ . Daily 11:30-21:00. A popular ice-cream parlour with multiple locations.
- Café 31 (Trentuno), Old Bray Road, Cabinteely D18 AK29 (next to Horse & Hound), ☏ . M-W 11:00-21:00, Th-Sa 11:00-22:00, Su 13:00-21:00. Italian restaurant with a relaxed atmosphere, big portions. Kids menu available.
Dún Laoghaire has a dozen bars and 4 nightclubs, mostly along the main drag of George's Street.
- The Forty Foot, The Pavilion Centre, Marine Rd (Next to station), ☏ . M-Th 08:00-23:30, F Sa 08:00-00:30, Su 08:00-23:00. A modern JD Wetherspoons chain pub.
- 1 O'Neills, 17 George's Street Upper, ☏ . daily 10:00-00:00. Good pub with bar food.
- 2 Dunphys, 41 George's Street Lower, ☏ . daily 12:30-23:30. Solid central pub.
- 3 McLouglins, 73 George's Street Upper, ☏ . Old style bar with live sports on TV.
- 4 Horse & Hound, Old School House, Bray Road, Cabinteely (off N11), ☏ . Daily 10:30-00:00. Well-known pub that retains its "village" vibe. Food also served.
- 1 Marina House Hostel, 7 Dunleary Rd (100 m east of Salthill & Monkston train station), ☏ . Right on DART and bus lines to central Dublin, but they only rent by the week, with 1 2 3 & 4 bedded rooms, no dorm. So it's more like student self-catering than a hostel. Kitchen & dining room, light breakfast is included. Rooms are en-suite. Laundry facilities, individual lockers, Wifi, TV lounge with open fire. Barbeque area weather permitting, this is Ireland. From €25 ppn.
- Royal Marine Hotel is a grand old pile facing the harbour, B&B double €150.
- 2 Rochestown Lodge Hotel, Killiney, Dun Laoghaire (2 km south of harbour), ☏ . 3-star with spa and leisure centre. All rooms have Wi-Fi, satellite TV, work desk with phone, hairdryer, iron & board, tea & coffee making facilities. B&B double €120.
Dún Laoghaire has 5G from all Irish carriers, though as of Sept 2021 you might only get 4G from Three.
- Dalkey is a heritage town at the south edge of Dún Laoghaire, take the bus or walk. It has a 10th century church, two Norman castles and a picturesque centre.
- Further south, the mountains rise in scenic County Wicklow.
- Central Dublin is barely 30 min away.