The largest such island has an area of , it is referred to as "Moby-Dick" by the local population, and is the largest such formation in the Balkans. It is overgrown with dense vegetation, including birch trees. Carried by the water currents and strong winds, in 2016 "Moby-Dick" almost reached the shore near the "Vlasina" hotel, softly attaching itself to the bank and becoming a major tourist attraction. Previous such occurrence happened in the mid-1990s. During the extremely low water level, it was reported in August 2018 that the island was partially stranded on dry ground. Another major storm and strong wind, detached Moby-Dick on 15 August 2020, which after four years continued to float on the lake surface.