Twofold Bay

Bay in New South Wales, Australia

Twofold Bay is an open oceanic embayment The northern bight is called Calle Calle Bay; while the southern bight is known as Nullica Bay, derived from Nalluccer, the original Aboriginal name for Twofold Bay. The bay is also known for the "Killers of Eden", the killer whales that helped a group of whalers in their search for other whales. The best known of these was Old Tom, whose skeleton is preserved in Eden's local museum.

Located near the town of Eden, Twofold Bay is approximately to the north of the border between Victoria and New South Wales. The bay is fed from the Nullica River and Towamba River that both flow into Nullica Bay. The catchment area of the bay is with a volume of over a surface area of , at an average depth of ; making the bay reputedly the third deepest natural harbour in the Southern Hemisphere. Close to North Head is a conspicuous islet, Mewstone Rock. About south of the islet is Red Point which forms the southern headland of the bay. Local waters including Twofold Bay are recognised as one of twelve coastal aggregation areas for southern right whales in Australia.

The first recorded visit to the bay by a European was by George Bass. The diaries of Bass show that he noted the bay when he passed it on his whaleboat voyage to Bass Strait in 1797/8. Bass took shelter in the bay on the return journey in February 1798; and named the place where he sheltered "Snug Cove",

Quarantine Bay, located south of Eden, is so named because a sailing ship with a smallpox epidemic amongst the people on board took refuge in this (then) isolated area. Many people died and were buried on shore in a communal grave. In 1843 Benjamin Boyd purchased land in Twofold Bay with the aim of transporting cattle from the district. He did a few more paintings of the area after his return to Britain. Evening: A scene in Boyd Town, Twofold Bay, is the title of a poem by Thomas Fennell, RN, that appeared in a New South Wales literary journal in 1847. Twofold Bay is the name, and subject, of a poem by E. J. Brady. Ben Boyd’s Tower, is the title of a poem by Henry Lawson. Will Lawson's book In Ben Boyd's day (1939) is set in the bay. So too is Shirley Barrett's novel Rush Oh! (2015) which offers a fictionalised account of the family of whaler George Davidson at Eden. The history of whaling in the bay, and the role Killer Whales in that process, is the focus of the Eden Killer Whale Museum. The Twofold Bay is mentioned in “The Children Of Captain Grant” by Jules Verne.

In the mid 2000s two major wharves dominate the south eastern section of the bay. The most easterly wharf services the woodchip mill. Usually two ships per month use the wharf. The forestry industry plays a significant role in the region. The Eden woodchip mill is owned by South East Fibre Exports (SEFE), a subsidiary of Japan's biggest paper manufacturer, Nippon Paper Industries. The mill processes whole tree logs and is unable to process waste wood. The Eden chipmill was Australia's first chipmill and has been vigorously opposed by conservationists for over forty years. Some conservationists argue that woodchipping not only kills millions of native animals and birds, it is a major contributor to climate change. The second wharf belongs to the Department of Defence and is used by the Royal Australian Navy to service its ships. Parallel to the woodchip mill is a naval munitions storage depot. It is a multi purpose wharf which allows other vessels, including cruise ships, to also moor at the wharf when the Naval ships are not using it. Mussel farming occupies the westerly part of the bay off the small peninsula between Cattle Bay and Quarantine Bay.