There are two dams at Victoria Reservoir. The Old Victoria Dam provided water for the city of Perth until 1991, when the New Victoria Dam was opened. Both dams cross the Munday Brook. The older dam was the first permanent water supply for the colony and also the first dam in Western Australia. It stood for almost 100 years before being replaced with the current dam. The new dam supplies water to the Perth Hills suburbs of Kalamunda and Lesmurdie, and also supplies the rest of the metropolitan area in times of peak demand. The area is not open to full public access; it can only be visited by the public via walking trails. Parking is only allowed well above the dam. Access to the picnic tables and the dam is via an 800 metre rough bush track, a flight of wooden stairs and then a bitumen road. Signage indicates no public to use bitumen access road. There are picnic areas at the head of the steps, and below the dam wall is another grassed picnic area. The Victoria Reservoir Walk Trail starts from the dam access road off Mason Mill Road in Carmel. The 6km trail will take you on a picturesque and enjoyable walk in Korung National Park. The trail is marked by lilac coloured triangle markers.