Hills! We have endless hills in Portland that offer low impact aerobic workout for all ability levels, great for obese kids & teens! We meet at the base of hills in NW & SW and then we start walking at our own individual pace. We encourage both silent walking and those who like to talk can talk together. $4 to attend payable before we start walking or there is bulk pre-payment options available. I personally have lost 20 lbs. by walking these hills in the last few months, and I didnt change my d …