Most main attractions in downtown Dublin are close enough that walking from sight to sight is possible. Be sure to get your hands on a map first, though. Streets in this town have a tendency to change names more than once.
Dublin has an extensive network. Fares can be paid in exact change only.
More information at: http://www.dublinbus.ie/
One ride (within 23 zones): €1-2.20
Suburban fares: €2.20, €3.50, €4.50
One-day pass: €6
Five one-day passes: €20
One-day bus and rail pass: €10.20
Three-day bus pass: €13.30
Seven-day student pass: €24
Nitelink bus ride, depending on destination: €4-6
Information at: www.dublin-airport.com.
Note: All prices were accurate at the time they were compiled. Please check the Web sites listed for the most up-to-date information.