Wikipedia https://en.wikipedia.org/wiki/National_Folk_Festival_(Australia) says it was first held in 1967, so the 60th anniversary won't be until 2027. 2026 would be the 60th festival, but since it was cancelled in 2020, and not a full festival in 2021, I figure the 60th festival will be in 2028.

Wikipedia also says, "However, it has not yet recovered from the leadership of Katie Noonan and Helen Roben, who made rash financial decisions and disrespected volunteers." I don't want to reopen that can of worms, I just want to express my surprise that such a strongly worded opinion made it into Wikipedia.