A man undertaking a Great New Zealand Walk of Hope has abandoned his quest.

Chris Linton (53) cancelled the remainder of his trip after he was unable to complete the Stewart Island leg.

The Otago Daily Times reported on Wednesday Mr Linton was attempting to be the first person to walk around the perimeters of the North, South, Stewart and Chatham Islands to raise funds and awareness of mood disorders.

The story prompted Stewart Island accommodation providers to express concerns about details of his trip.

In a text message yesterday, Mr Linton said he fell into a "deep depression'' when he got to Stewart Island and spent most of his time in his tent.

He did complete one of the lesser circuits.

"It's not easy living with chronic recurring depression, especially on such a big expedition,'' he said.

"I have tremendous pressure representing so many who suffer with mood disorders, depression and bipolar.''

Mr Linton apologised to his followers and said he did not want to let anyone down.

"I am proud of my accomplishments and challenge any right-minded person to even attempt what I have done.''

rhys.chamberlain@odt.co.nz