"This year is a lot more varied and will be more exciting."
The programme can accept up to 80 participants and activities include FootGolf, walking, swimming, baking, pottery, athletics and laser tag.
It runs December 17-21, with a break over Christmas, then from January 7-25.
Sundman said it was a good opportunity for young people to try new things.
"It's good for them socially, it's good for their health and good to get away from gaming and things like that.
"We just want to keep young people occupied over the holidays and it's nice to have something for free, so it's not expensive for families."