The East Peninsula is one of the four principal peninsulas on the island of Sulawesi, Indonesia. It is part of the province of Central Sulawesi.
It stretches east from the central part of the island, forming the southern boundary of the Gulf of Tomini and the northwestern boundary of the Gulf of Tolo. The island of Peleng lies off the peninsula's southern coast, while the Sula Islands lie to the east.
The Gulf of Tomini (Indonesian: Teluk Tomini), also known as the Bay of Tomini, is the equatorial gulf which separates the Minahassa (Northern) and East Peninsulas of the island of Sulawesi (Celebes) in Indonesia. The Togian Islands lie near its center. To the east, the Gulf opens onto the Molucca Sea.
Sulawesi (/ˌsuːləˈweɪsi/ SOO-lə-WAY-see, Indonesian: [ˌsulaˈwesi]), also known as Celebes (/ˈsɛlɪbiːz, səˈliːbiːz/ SEL-ib-eez, sə-LEE-beez), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's 11th-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Archipelago. Within Indonesia, only Sumatra, Borneo, and Papua are larger in territory, and only Java and Sumatra are more populous.
The landmass of Sulawesi includes four peninsulas: the northern Minahasa Peninsula, the East Peninsula, the South Peninsula, and the Southeast Peninsula. Three gulfs separate these peninsulas: the Gulf of Tomini between the northern Minahasa and East peninsulas, the Tolo Gulf between the East and Southeast peninsulas, and the Gulf of Boni between the South and Southeast peninsulas. The Strait of Makassar runs along the western side of the island and separates the island from Borneo.