Mr Watson was diagnosed with a form of Parkinson’s called progressive supranuclear palsy 10 years ago, which has left him functionally blind.
It turned life upside down for the formerly active farmer, who was known to head for the hills for hunting and adventures.
But his determination and passion for life remains.
To mark his milestone 70th birthday next Thursday, Mr Watson is planning to walk 7km along the Otago Central Rail Trail today — and he’s not doing it alone.
More than 70 supporters are going to join Mr Watson — walking, biking or by piggyback — on his walk and raise funds for Parkinson’s New Zealand.
A birthday celebration will be set up in a paddock part way along the trail for Mr Watson to enjoy with his family.
He has been preparing for the walk for the past month and can be regularly seen out walking with one of his three "girlfriends" (his carers).
Wife — and "number one girlfriend" — Paulette said it was important for Stu to keep moving, and he wanted to be able to support other people with the disease.
"Every person that has Parkinson’s, their experience is different."
The couple wanted to thank all those who had helped them navigate Mr Watson’s condition and those who were supporting the fundraising effort.
