High Quality Content by WIKIPEDIA articles! Maroubra is a beachside suburb in the Eastern Suburbs of Sydney, in the state of New South Wales, Australia. Maroubra is located 10 kilometres south-east of the Sydney central business district in the local government area of the City of Randwick. Maroubra is the largest suburb in the area governed by Randwick City Council in both size and population.Maroubra Junction is a locality in the centre of the suburb.