Rātana celebrations begin on Tuesday, with church and iwi leaders gathering at the Pā near Whanganui.
It comes just a few days after the Kiingitanga's historic nationwide hui, where over 10,000 people gathered under a united call for the Coalition government to be held accountable.
Most politicians will attend Rātana Wednesday, but Te Pāti Māori will arrive alongside the Kiingitanga Tuesday afternoon.
Te Pāti Māori co-leader Debbie Ngarewa-Packer spoke to Corin Dann.
