 The Inter-Wanganui Co-op opened a dairy factory at Hari Hari in 1908, but it is now a ruin.Hari Hari's main claim to fame occurred on 7 January 1931, when Australian aviator Guy Menzies landed upside down in a swamp near Hari Hari, completing the first solo flight across the Tasman Sea.Menzies, who had left Sydney 11 hours and 45 minutes earlier, was aiming for Blenheim but had been blown off course and mistook a swamp for flat pasture suitable for landing.