With little access to water, early settlers struggled to maintain a living from the land. The coming of the railway in 1923 eased some of the early hardships. The creation of the nearby Boondooma Dam by damming the Boyne River to provide a source of water for Tarong Power Station solved Proston's water problems. This also led to the development of a small tourist industry involving activities such as boating, and fishing by the lake.
An unusual attraction in Proston is Sidcup Castle. The "castle" comprises seventeen rooms, five of which are hexagonal. The entire structure was built from second hand materials by Harold Douglas and designed as an exact replica of his childhood home in Sidcup, Kent.