 The Easter Group lies to the southeast of the Wallabi Group, from which it is separated by a 9 kilometres (5 mi) wide channel named Middle Channel.It is about 20 kilometres by 12 kilometres, and consists of a number of islands including Rat Island, Wooded Island, Morley Island, Suomi Island and Alexander Island.Further to the south-east, across Zeewijk Channel, lies the Pelsaert Group, the most southerly true coral reef in the Indian Ocean.