Matagarup Bridge became a metaphor between opposing sides, as thousands crossed it in support of an Indigenous voice to Parliament.

Donning signs and shirts with the simple statement "Vote yes' on them, the crowd that started at the Nicky Winmar Statue, grew bigger and bigger as West Australians participated in the Yes23 walk on Sunday.

The procession was led by former federal Liberal Indigenous Affairs minister Ken Wyatt and WA Premier Roger Cook.

Mr Cook was the first of many to give a speech on why a voice to parliament is important, he said he doesn't see the voting yes as an obligation but an honour.

"I wanna acknowledge all my friends across the parliaments and councils in Western Australia, their red, their green, their blue, today we all stand united together to vote yes for referendum," he said.

"And why are we doing that? Well because we are decent people, because we have been asked [and] invited, invited to acknowledge, respect, consult, it is a simple proposition.

"It's one we should be thankful for, I wanna thank the first nations people of Australia for being so welcoming, so open with their heart and giving us this opportunity to reconcile this country.

"I am optimistic and I refuse to accept that Australians accept division, accept fear, accept misinformation, I refuse to accept those propositions."

and WA Premier Roger Cook. (Image: Rhiannon Clarke)

Standing on the stage together was Mr Wyatt and Yamatji-Noongar WA Greens Senator Dorinda Cox who she is tired of the debate in the Federal Parliament but amazed at the turnout in Perth.

"I came here this morning and I lined up with everyone at the Nicky Winmar statue and how inspired I was to see Perth turnout today," said Senator Cox.

"As reflect on the grave historical moments, Nicky Winmar's statues represent that historic moment, it's a moment of reflection of our history but it's also point for us to unite and walk together and that's what we did today perth, we walked together into our future.

"On October the four-teen we have the power to make that change, voting yes will change lives, it is about unity, it is about love, it is about recognition and it's about respect and I know you will help me get it over the line."

(Image: Rhiannon Clarke)

Mr Wyatt thanked everyone for gathering at East Pert and said he saw the Voice as "an incredible opportunity of uniting us as a nation".

"Bring this together as Aboriginal people at the community levels with their feet under the table, to be sitting at the table at the regional and national level," he said.

"And for our people to be co-designing, co-planning and co-implementing the reforms that need to be community level.

"All of you turning out today gives me great hope, I have believed in the voice in the beginning, I believe in the voice that will come and the voices that will change the future."

as thousands crossed it in support of an Indigenous voice to Parliament.

(Image: Rhiannon Clarke)

Yes Campaign Director Dean Parkin said a no vote offers nothing to Australia and will keep us "rooted to the bottom of the ladder", that's why he believes Australians must understand there is a real choice and a real change in voting.

"I won't speak long because we don't have long, we got 27 days to go until the 14th of October when millions of Australians go to the polls and we know that there is a very very cleat choice on hand here," he said.

"A vote for yes is to recognise Aboriginal and Torres Strait Islander peoples as the first people of our country and that is something we can absolutely do in 2023, but not only that we get to do something practical through the establishment of a voice with a guarantee in the constitution which means we can really start to address these keys issues facing our peoples across the country.

"A vote for yes is a vote for real change to change the lives of Aboriginal and Torres Strait Islander peoples across the country and that is what we need."

The walk in Perth was just one of many across WA, with smaller events in regional centres, and across the country with massive rallies in all major cities.