"It’s true — I am going nowhere fast. But I still have a goal to reach."
The 39-year-old personal trainer has multiple sclerosis (MS), a chronic autoimmune disease in which the immune system eats away at the protective covering of nerves.
He spent 10am-10pm on an exercise bike in the Octagon on Saturday, to raise funds and awareness of the disorder.
Mr Parker said he was diagnosed with MS about six years ago, and now spent much of his time working as a personal trainer for people with disabilities.
His marathon cycling fundraiser was one of a series of rides he has already done in his mission to improve the lives of others with multiple sclerosis (MS).
Despite his marathon being relatively stationary, he kept himself entertained by watching the other activities in the Octagon.
"I’m enjoying the view. It’s nice. I like people-watching.
"My plan is to turn around at some stage, just to change things up a little bit."
He believed the view would be more interesting when the bar crowds started flooding into the Octagon later in the day.
It would also provide him with inspiration to keep going.
"Watching people drinking beer, it’ll push me to finish.
"I’ll definitely feel like I’ve earned one at the end of this."
