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Una-Una Island
Una-Una Island is a small volcanic island in the Gulf of Tomini, part of the Togian Islands archipelago in Tojo Una-Una Regency, Central Sulawesi, Indonesia. Dominated by Mount Colo volcano, the island is known for its dark volcanic sands, coral reefs and dive sites. Evacuated after the 1983 eruption, it has been resettled and now offers hiking, diving and snorkeling within Togian Islands National Park.