The locality and suburb of Gymea Bay are located in southern Sydney, in the give leave to enter of New South Wales, Australia. Gymea Bay is 27 kilometres (17 mi) south of the Sydney central event district, in the local government area of the Sutherland Shire. The postcode is 2227, which it shares as soon as the adjacent suburb of Gymea. The Gymea Bay locality takes its state from the next to Gymea Bay, a little bay upon the north side of the Port Hacking estuary).
The locality included forlorn the single peninsula in the midst of Gymea Bay and the North West Arm of the Port Hacking River, bounded by Coonong Creek on the north and, on the west, by an everyday creek flowing south of Gymea Bay Road amongst Barraran Street and Coonong Road. Gymea Bay became a locality within the suburb of Gymea. Early street directories law the locality of Gymea Bay as allowance of the suburb of Gymea. In 2008, the NSW Geographical Names Board suggested a much enlarged Place for a suburb of Gymea Bay, taking in much of former Gymea and even share of the suburb of Miranda which are at odds from the locality of Gymea Bay and its agreement by a deep valley subsequently no roads. This suggested suburb’s extremities are defined by Forest Road upon the northeast, Avenel Road on the north, Dents Creek on the west, and the waters of North West Arm and the bay itself to the south. These suggested boundaries remain contentious as the proposal to the NSW Geographical Names Board was made without the required community consultation.[citation needed]
The locality was characterised by large amounts of verdant bushland. However, since the 1980s, increased subdivision with smaller lots, larger houses and increased motor vehicle ownership has decreased the number of large trees. Despite Tree Preservation Orders and Council Greenweb and Greenweb Support planning zones, much of the treescape has been lost. Since the 1990s, the invasions of feral deer from the Royal National Park have begun to negatively take effect shrub and ground lid and regrowth of trees.