Ambon Island lies off the south-west coast of the much larger Seram island. It is on the north side of the Banda Sea, part of a chain of volcanic islands that encircle the sea. It is 51 kilometres (32 miles) long and is of very irregular shape, being almost divided in two. The south-eastern and smaller portion, a peninsula (called Leitimor) is united to the northern (Hitoe) by a narrow neck of land. Ambon city is on the north-west of Leitimor, facing Hitoe, and has a safe harbor on Amboina Bay.
The highest mountains, Wawani 1,100 metres (3,600 feet) and Salahutu 1,225 metres (4,019 feet), have hot springs and solfataras. They are volcanoes, and the mountains of the neighboring Uliaser islands, extinct volcanoes. Granite and serpentine rocks predominate, but the shores of Amboina Bay are of chalk, and contain stalactite caves.
Wild areas of Ambon Island are covered by tropical rainforest, part of the Seram rain forests ecoregion, together with neighboring Seram. Seram, Ambon, and most of Maluku are part of Wallacea, the group of Indonesian islands that are separated by deep water from both the Asian and Australian continents, and have never been linked to the continents by land.
As a result of this isolation, Ambon has few indigenous mammals; birds are more abundant. The insect diversity of the island, however, is rich, particularly in butterflies. Seashells are obtained in great numbers and variety. Tortoise-shell is also exported.
The population of the island (administered as Kota Ambon, Kecamatan Leihitu, Kecamatan Leihitu Barat, and Kecamatan Salahutu) includes a tiny sparsely populated island to the north, is just below 441,000 in the 2010 Census
