Johnston said she expected participants might feel "a little bit uncomfortable".
"But people who come to these workshops are probably open-minded and have curiosity," she said.
"Those are the only starters for 10 you need coming in. We'll look at how vulnerability and courage are linked and what's important for the leaders and their teams.
"They'll leave with a new appreciation of why courage is important and what it looks like. They'll have something new to try and an understanding of why moments of ordinary or everyday courage make a difference. It gives them a different lens on leadership and on their team."
Chamber chief executive Marianne Archibald said the first of the four-part "authentic leadership" series would be hosted by Nga Tai o te Awa.
"It's for anyone in the community," Archibald said.
"It will be different to traditional leadership workshops. It's about how to live and lead with authenticity. It's a really different way of leadership and a different way to think about ourselves."
The workshop will be on Thursday, July 12. Participants can choose between sessions at 12pm-2pm or 4.30pm-6.30pm. The cost is $100. Bookings are essential. Contact ce@whanganuichamber.net.nz to register.