We drove by a local trail in Langley. The sign said bike riders yield to hikers and horses and so on but it did not say anything about no atv s The last time the kids and I walked the trail we only saw one person on a horse. It Took us 2hrs to get to the end then 1.5 hrs to walk around and back to the jeep. I wonder if it is atv friendly. If they did not want them it would say so i am guessing.