Clinton Pryor's 5581 kilometre walk across Australia ended on Sunday with a corroboree at the Aboriginal Tent Embassy in Canberra.
The Wajuk, Balardung, Kija and Yulparitja man set off from Western Australia almost a year ago in protest of the forced closure of Aboriginal communities.
He met with Indigenous groups along the way, including in Kalgoorlie where he attended the funeral of teenager Elijah Doughty, who died after being hit by a ute.
On Sunday, Mr Pryor told a crowd of several hundred supporters he would meet with politicians on Tuesday and Wednesday to fight for a better world for all Aboriginal people.
"We're all here today because we want justice to be done for our people once and for all," he said.
"I have walked across this country for over 11 months and a bit and I have seen the injustice happening to our people.
"We've been fighting for our rights for 50 years and fighting for survival before that. For 129 years we've been fighting the system.
"When these people come out on Tuesday and Wednesday, do not be ashamed to speak from your heart."
Mr Pryor walked seven million steps on his journey to the capital. The 27-year-old fought blisters, loneliness and injury to fulfil his goal.
Now, he said on Sunday, he was known as the spirit walker.
"Everyone used to call me the walker, but now they call me the spirit walker," he said.
"The meaning of spirit walker is that your spirit in your soul tells you to get up and do something - go for a big walkabout."