Port Milang Museum, consisting of a series of sheds alongside the Milang Oval, was built and is maintained by Milang and District Historical Society and opened by Alexander Downer MP on 15 January 1989. Since the mid-1980s the society has amassed an extensive collection of farm machinery, fire appliances and other large items which are housed at the museum while their collection of documents and photographs are stored at its headquarters, The Chapel in Stirling Street.
A feature of the museum is the display illustrating the methods used by fishermen on Lake Alexandrina beside which the township is located, which owes much to the enthusiasm of Victor Woodrow whose family was involved in this industry for many years. There is backdrop behind the display painted by members of the Milang Art Group in 1988 which depicts the foreshore at Milang in the 1850s.
Vic Woodrow's book Boats across the Lake is available from the Society; as is the comprehensive history of the district, Alexandrina's Shore edited by Jim Faull; and Lance Wakefield's Belvidere: Gateway to the Lakes and River.
Other items on display are blacksmithing tools, kitchenalia, a model paddlesteamer and several fire fighting vehicles. There is a collection of vintage agricultural machinery outside on the lawns. Visitors to the museum can also enjoy afternoon tea served by volunteers from the former scouts’ club house beside the oval.
In 2011 the society received funding from the Australian Men's Shed Association to convert an existing shed into a Men's Shed. The Lakeside Men's Shed @ Milang is based on a traditional backyard shed and provides a relaxed place for men to meet and to learn new skills or to continue a hobby or just pop in and have a chat and a cuppa with other men. The Men's Shed is open to all men in the Milang community and District.