[Photo from visitdublin.com]

Luas is Dublin's light-rail transit service - a swift, reliable (and rather lovable, if we may say so ourselves) tram system crossing the city on two lines.

Tickets for Luas (the Irish word for "speed") can be purchased at streetside vending machines. They're available for single/return journeys or as flexi-tickets covering travel for seven or 30 days. Check the destination on the front of the tram before boarding, and you're all set for a smart light-rail system serving not just stops along the River Liffey, but some of Dublin's best sights.

The Luas Red Line (32 stops) runs from Tallaght through the city centre to the Point Village or Saggart/Connolly Station in Dublin’s docklands. Highlights along the Red Line include the O2 arena, the National Museum of Decorative Arts & History at Collins Barracks and the historic Kilmainham Gaol.