Óbuda Island is a 108-acre island located in the Danube River near downtown Budapest. It is home to the annual Sziget Festival, one of Hungary's top tourist attractions. The festival attracts over 500,000 visitors each year, 150,000 of whom are unique visitors from over 100 countries. The festival has led to infrastructure developments on the island, including roads, pathways, trees, and public services. It provides a major economic boost to Budapest, generating an estimated 17 million euros in food and beverage turnover and 18 million euros in tax income according to a KPMG survey.