A number of sport venues are located in Tivoli Park. An outdoor swimming pool in Tivoli, constructed by Bloudek in 1929, was the first Olympic-size swimming pool in Yugoslavia. The Tivoli Recreational Centre in Tivoli is Ljubljana's largest recreational centre and has three swimming pools, saunas, a Boules court, a health club, and other facilities. There are two skating rinks, a basketball court, a winter ice rink, and ten tennis courts in its outdoor area. The Tivoli Hall consists of two halls. The smaller one accepts 4,050 spectators and is used for basketball matches. The larger one can accommodate 6,000 spectators and is primarily used for hockey, but also for basketball matches. The halls are also used for concerts and other cultural events. The Slovenian Olympic Committee has its office in the building.