The Derwent River estuary has served as Hobart's commercial artery since 1804, when Lieutenant-Governor David Collins anchored HMS Calcutta at Sullivans Cove and declared the site fit for permanent settlement. Within two decades the waterfront bristled with whale-oil refineries, timber depots, and shipyards that launched vessels bound for the Southern Ocean. By the 1830s Hobart ranked as the fourth-largest port in the British Empire, its wharves stacked with Huon pine logs, wool bales, and apples destined for London markets. The sandstone warehouses lining Hunter and Davey streets still bear iron rings that once tethered convict-built lighters. Today a Hobart historic lunch cruise tour threads the same channel those colonial traders navigated, passing beneath the Tasman Bridge's concrete spans and along Sullivans Cove, where the floating dock of the Australian Antarctic Division berths research vessels between Southern Ocean deployments. The harbour remains a working port: zinc concentrates move through Macquarie Wharf, fishing trawlers unload Southern rock lobster at Constitution Dock, and tall ships moor stern-to along Elizabeth Street Pier during the Sydney to Hobart Yacht Race finish each December. Heritage vessels operated by local maritime trusts offer commentary that links the sandstone facades of Battery Point to the convict labour that quarried and dressed each block. Hobart historic lunch cruise tours depart from Murray Street Pier, the timber wharf rebuilt in 1915 to accommodate steam-packet services to Bruny Island and the Tasman Peninsula. Onboard menus lean on Tasmanian produce: Huon Valley smoked salmon, Bruny Island cheese, Coal River Valley wines, and Recherche Bay mussels. The two-hour route typically tracks north past the Royal Tasmanian Botanical Gardens and the Cadbury chocolate factory at Claremont, then south toward the Iron Pot lighthouse, Australia's oldest continuously operating navigation beacon, commissioned in 1832. Guides recount the Derwent's role in Antarctic exploration—Roald Amundsen provisioned in Hobart before his 1911 South Pole expedition, and Douglas Mawson's Aurora departed from these docks in 1911 and again in 1929. The cruise returns via MONA's angular pavilion at Berriedale, a 21st-century counterpoint to the Georgian symmetry of the waterfront.