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the national public toilet map will show you the public accessible bathrooms which are often gender neutral but i dont know of anything such as toil/art that shows bathrooms in cafes/bars etc: http://www.toiletmap.gov.au/map.aspx?type=area&id=c9ebf6f0-8406-4488-bf91-39d8ba363c9e you can also check out the safe 2 pee site that inspired toil/art but it mostly US based: http://safe2pee.org