Kirwan told the Herald that as an ambassador for Westpac he thought it would be nice if to pop in and talk about mental health. Kirwan will be in Kaikoura from 9am to 7pm and will be available to answer questions.
"There was quite a big rise in anxiety and post traumatic stuff after the Christchurch earthquake.
"Maybe we might be able to short circuit some of it [the trauma]."
Kirwan, who is one of the highest try scorers in international rugby history, has spoken openly about his battle with depression. He advised to take some time to look after yourself and reach out to loved ones.
"Take some time around awareness and understand what you've been through... Don't put it in the cupboard.
"There's the mending of the land and buildings but also the mending of the emotional side of things."
Kirwan was given a knighthood for his services to mental health.
John Kirwan will speak at Thursday's 1pm community meeting in Kaikoura in Churchill Park, or Memorial Hall in wet weather.