Plovdiv There are also playgrounds for children. It is popular among the citizens and guests of Plovdiv who use it for jogging, walking, and relaxation. Plovdiv Stadium (55,000 seats) is the largest football venue in Bulgaria. Other stadiums include Stadion Botev, Lokomotiv (10,000 seats), Maritsa Stadium (5,000 seats), and Todor Diev Stadium (7,000 seats). There are seven indoor sports halls: Kolodruma, University Hall, Olimpia, Lokomotiv, Dunav, Stroitel, Chaika, Akademik, and Total Sport. In 2006, Aqualand, a water park, was opened near the city centre. Several smaller water parks are in the city as well. Football is the most popular sport in
Plovdiv Province capital is the city of Plovdiv; other towns include Karlovo, Sopot, Klisura, Kalofer, Hisarya, Saedinenie, Rakovski, Brezovo, Stamboliyski, Krichim, Perushtitsa, Sadovo, Parvomay, Asenovgrad, Laki, Katunica, Yiagodovo. Plovdiv Province had a population of 715,904 (715,816 also given) according to a 2001 census, of which were male and were female. As of the end of 2009, the population, announced by the Bulgarian National Statistical Institute, numbered 701,684 of which are over 60 years of age. The following table represents the change of the population in the province after World War II: Total population (2011 census): 683 027<br> Ethnic groups (2011 census): Identified