When they fly to Papua New Guinea they will be thinking of the late Ched not only because the husband and father was the first blind man post-war to do the trek in 1993, but also because he kayaked there from Cape York with trekking partner Brian Lang just for "something to do''.

Mr Towns died from a heart attack while trekking on Mera Peak in the Himalayas in training to be the first blind man to conquer Mount Everest.

At Ms Bartholomew's suggestion earlier this year, Judy and Carlie decided to take up the challenge.

They are part of a team of 24 Heart Foundation trekkers, which also includes Lapstone's John Kurko, and raised $16,000 from a dinner auction at the Penrith RSL Club last month.

Carlie said the physically draining trek will also be a mental journey.

"I'm going to think of dad the whole way."

"I think this is going to be the beginning of many more adventures.''

Judy said the trek would be emotional because she and Mr Towns used to partake in events together such as triathalons.

"My thoughts are of him all the time.''

"One of the things I miss the most is that he used to laugh every day,'' she said of her "soulmate''.

The question of what kind of man Mr Towns was, drew laughter.

"He was him,'' Carlie said.

"He used to come up with these adventures.''

Mr Towns started to lose his sight through retinitis pigmentosa when he and Judy were engaged to be married.

After falling into a "deep hole'' early on Judy said he made the best of his disability, competing in the Seoul 1988 paralympics in javelin and riding across the Simpson Desert in 1998.

"He said he was never going to be a `gunna','' Judy said.

Tax deductible donations can be made through visiting everydayhero.com.au/judy towns.

Money goes directly to the Heart Foundation