 In the area bounded by the modern Karaburma, Rospi Ćuprija and, at that time island, Ada Huja, Romans cultivated grapevines and used thermal springs for public bathhouses.For centuries area was a true swamp with vast quick clay areas so it was avoided by humans ever since the Roman period.Today non-existing thermal springs along the Danube's bank fumed and heated the water so the swamp was in constant mist.