I worked in Esperance in 2003 and I had the opportunity to visit Lake Ballard. It is located about 50 kilometers west of Menzies.
Also in 2003, the Inside Australia exhibition was commissioned. The artist and Turner Prize winner Antony Gormley installed 51 sculptures over an area of 10 square kilometres (4 sq miles) on the bed of the lake. The statues were to be removed at the conclusion of the festival but stay as a very unique tourist exhibition in the region.
I scanned copies of my photos taken on the day of my visit. To see what Wikipedia has to say about this exhibition, click on the following link Lake Ballard