Mulwala Weir is a significant structure located on the Murray River in Australia, primarily serving to regulate water flow for irrigation and recreational purposes. Completed in 1940, it plays a crucial role in managing water supply for the surrounding agricultural areas, ensuring farmers have access to necessary resources. The weir also creates a large lake, known as Lake Mulwala, which is popular for various water activities such as fishing, boating, and swimming. This recreational aspect contributes to the local tourism industry, attracting visitors who enjoy the natural beauty and outdoor experiences the area offers.