I want to go to Greenwood Conservation Area w/dogs. I use a walker (I have back problems & this is my means of getting around) & often go on well walked trails with it. If I go there is it easy for me to get around. Now remember, I am used to flat bumpy trails. Also, after the dogs play, my friend w/2 kids want to walk the other trails. Will I be OK with my walker? Is there a map that someone could tell me which ones to take on flat ground.