There are three main forms of public transport in Dublin; Dublin Bus, the DART and the LUAS.
Buses are frequent to many areas, and most pass through the City Centre. Indeed, many routes pass Trinity College, and there are bus stops on Dame Street and Nassau Street for routes serving most parts of the city.
All buses have an exact fare system, which means you must have the correct amount of money for the fare when you enter the bus. If you do not, you will only get change in the form of a voucher which you can exchange for cash at the Dublin Bus office on O'Connell Street. Fares range from €1.05 to €4.30 on most urban routes.
Bus services stop around 11:30pm on most routes. However, from Thursday to Saturday, there are NiteLink buses to most areas of the city leaving every 30 minutes between at 12:30am and 4:30am. Monday to Wednesdays have limited Nitelink buses, one at 12:30am and one at 2:00am. The fare is €5.
The DART (Dublin Area Rapid Transport) is a suburban railway operating along the coast from Howth in North Dublin to Greystones in Co. Wicklow, stopping at three stations in the City Centre. Fares range in price depending on the distance of your journey.
The LUAS is Dublin’s light rail tram system. There are two lines; the Red line operates from Tallagh to Connolly station in the North city centre; the Green line operates from Sandyford to St Stephens Green in the South city centre. Fares range in price depending on the distance of your journey. Tickets can be bought at vending machines at the stations or from certain outlets.