If walking is your thing, there are many trails through the forest, including the Devils Trail, the Fairy Knowe and Kirsty's Cairn and with names like these, live up to the expectation they suggest!
If you want to walk further, there are many areas to walk, including the Southern Upland Way which passes not far from here.
web.ukonline.co.uk/james.leil/Forest_Trails.html
www.ayrshirepaths.org.uk/devilstrail.htm
walking.visitscotland.com/walks/southscotland/212671