Mr Upton started organising hikes in 2019 after he struggled with his mental health the previous year.
He said being outdoors helped him and he wanted to make the experience accessible to more people.
“I went through some bad times myself and I withdrew,” he said.
“I hid away for a long period of time. I know how damaging that can be.
“I just want people to realise that there are people out there that care, that want to be there for you. Just come along and see some happy faces.”
This is the first time Mr Upton has set up a hike on Christmas Day.
He said his 12-year-old daughter encouraged him to do it.
There are two walks planned so people who are alone for a part of the day can also come along.
“This Christmas Day hike is not going to make your problems go away but it can make it more bearable,” Mr Upton said.
If you’re affected by any of the issues in this article you can find details of organisations who can help via the Action Line.