He leads backpacking retreats, nature-based retreats, and teaches retreats for environmental activists in the wilderness at Vallecitos Mountain Refuge in New Mexico, and at Knoll Farm in Vermont. In the Bay Area, Mark has a counseling practice, where he integrates his studies of psychotherapy and meditative work. He is the author of “Awake in the Wild - Mindfulness in Nature as a path of Self-Discovery." Mark has been an avid hiker, and backpacker for most of his life and spends much of his time in the outdoors. He lives in the woods in Marin County, Northern California.