Theres already several Collie mines that are full of water and utilised for water sports, Black Diamond being one that springs to mind, BUT they are surrounded by jarrah forest and hills.
Can't see them being anygood for kiting.

Last time I was in Collie we were on 1 of those dams ur talkin about - surrounded by hills & jarrah - about to pull our illegal marron pot when the pot bouy - just 20ft from our boat - got zapped by an an enormous (an very noisy) bolt of lightning.
Collective spontaneous shatting was followed by hectic paddle-in to shore.
Didnt believe till then the truth of that old saga 'every creature's sacred' Damn sure believe it now. Fisheries have some serious supporters out there [}:)] [}:)] [}:)]
Havent been back since.