National Aquatic Centre

The National Aquatic Centre (NAC) (Irish: Sportlann Uisce Éireann) is a water-sports facility located in the townland of Abbotstown (in the civil parish of Castleknock), in the county of Fingal, Ireland.

The NAC was built to be "the home of Irish swimming", with modern facilities such as a 50m competition pool (one of only three in Ireland), diving pool with movable floor, and leisure centre – it is Ireland's largest indoor water leisure facility.

The centre was completed and opened in March 2003 and hosted the Special Olympics in August 2003 and the European SC Championships in December 2003. It can accommodate 2,500 seated spectators.

In January 2005, the centre sustained roof damage during a period of stormy weather and it had to be closed for five months in order to receive repairs. This closure, after only 18 months operation, damaged the business of the operating company, Dublin Waterworld. Campus & Stadium Ireland Development, the State company which owns the centre, commissioned an engineer to assess the roof damage and they concluded that the roof was not designed and constructed in accordance with the building regulations. During the closure period CSID commenced legal proceedings to remove the operators, which they successfully did. The centre re-opened to the public on 20 May 2005.

The centre is now home to many swimming competitions including the Irish Long Course Championships and Leinster Age Groups. Many clubs around the Dublin area use the competition pool to train in, although training hours in the pool are limited.

The diving pool is home to Dublin Diving Club and Master's Diving Club but is also used for water-polo matches and tournaments. It can also be difficult to get training hours in the diving pool due to competing commercial demands.