For my first trip to Ireland, I chose to spend a few days in Dublin with my sister. Here are the main places and activities not to miss on a first visit, along with the tips that go with them.
01Flight and getting into the city
Several options to reach downtown from the airport:
We took the bus on the way there (€2.20, ~45 min to the hostel), and the Airlink from O'Connell Street on the way back for a 6:15am flight (direct route, 30 min).

On the way
02Must-sees
1. Guinness Storehouse & St James's Gate
Ireland means beer, and specifically Guinness. In an industrial setting, on St James's Gate (Dublin 8) — allow at least 3h for the visit, skip-the-line ticket recommended. The tour ends with a pint tasting at the Gravity Bar, with a 360° view of the city. Tickets pre-booked on Get Your Guide.
Hours9am-5pm
Entry + free pint€25

Guinness Storehouse
2. Trinity College, Old Library & Book of Kells
A prestigious university founded in 1592 by Elizabeth I — the only one in Dublin open for visits. Its Old Library holds particularly rare, ancient books across 2 floors.
HoursMon-Sat 9am-5pm
Old Library + Book of Kells€8

Trinity College

Trinity College

Old Library
3. Ha'Penny Bridge & River Liffey
The famous footbridge over the Liffey, built in 1816 — made iconic in part thanks to U2, whose studios are just nearby.

Ha'Penny Bridge

River Liffey
4. Temple Bar
The liveliest neighborhood in the city — cobbled streets packed with pubs, an Irish atmosphere to the sound of fiddles. Happy hour or early bird, everything's here for a memorable night out. You'll also come across the Hard Rock Café, traditional or specialty restaurants, and plenty of souvenir shops.

Temple Bar
5. Saint Patrick's Cathedral
Built in 1191 in honor of Ireland's patron saint — one of Dublin's most important monuments, in Dublin 8, surrounded by a large, restful park.

St Patrick's Cathedral
6. Christ Church Cathedral
Also known as the Cathedral of the Holy Trinity, Dublin — easy to reach, just steps from Temple Bar.

Christ Church
7. Dublin Castle
A beautiful 13th-century building right in the city center, partly open to the public.
HoursMon-Fri 10:15am-5pm, Sun/holidays 2pm-5pm
Interior visit duration45 min
Price€4.50

Dublin Castle

Dublin Castle
8. Kilmainham Gaol
A former prison built in 1796, where public hangings once took place outside the building — today decommissioned and turned into a museum. It's also served as a filming location for several movies (The Wind That Shakes the Barley, Michael Collins, In the Name of the Father, The Italian Job). We didn't visit it ourselves, but here are the practical details:
HoursMon-Sat 9am-5pm
Duration1h
Price€8
9. Grafton Street, St Stephen's Green & shopping mall
THE shopping street in Dublin, with stores for every budget. At the end of the street, the St Stephen's Green shopping mall, easy to spot with its distinctive architecture, offering a view of the park of the same name from its food court.

St Stephen's Green

St Stephen's Green

Shopping Centre
03Getting around the city
Dublin is a human-scale city, entirely walkable. To go faster or further, bus and tram cover the city — same rule as the airport bus: bring exact change. The tram fare depends on the zones you cross.
04Beyond Dublin
A full day set aside for Connemara and Galway, through Get Your Guide.
Day excursion / person€38
✎ 3 possible pick-up points: Paddy's Palace, Suffolk Street, O'Connell Street

Connemara

Cong

Cong Abbey

Pub — The Quiet Man

Galway

Galway