"Last year they had the training runs at the park and it was the first time it had been done, so I went along. I thought it would be good to run with people because running's a solo sport and it can get a bit lonely.
"It's quite good having other people there. You get to meet people, and chat to people and learn about others and what motivates them. You're with like-minded people I suppose."
Running is in Christelle's blood.
Her dad and sister regularly compete in the Hamilton Half Marathon and the Rotorua Marathon and she said it was only a matter of time before she was hooked.
"I sort of did it on and off, but after we had the kids and we knew that our youngest was going to be the last one I kind of think it becomes more about doing something for you. After I did the training runs last year I became a bit more serious about it. I thought, yep, I really think I can do this [Rotorua] Marathon. It's healing. It's time out for yourself," she said.
"Some people go and get their nails done, I go out and run. It just makes me feel mentally and physically better, and it's an example for the kids.
"It's so important these days that kids get out there and use their feet, instead of being inside all the time."
The Hamilton Half Marathon will take place on Sunday, October 5 and also includes 10km run and walk, a 5km fun run and walk and a kid's commando challenge.
All events start and finish at Flagstaff Park and there is $8000 in prize money and $15,000 in spot prizes up for grabs.
For more information and to register for the event online visit www.hamiltonhalfmarathon.org.nz or phone 0800 426-425.