Addiction is a difficult problem to treat, but natural environments can offer some extra motivation for addicts to remain sober. Ecotherapy is a form of drug rehabilitation that takes place outdoors in natural settings; it is sometimes called wilderness therapy, adventure therapy, or outdoor behavioral health. Studies show that ecotherapy can be a valuable tool for treating substance abuse and addiction. During ecotherapy programs (also referred to as wilderness therapy), people spend much of their time participating in activities such as hiking, kayaking, rock climbing, mountain biking, and sailing—all while surrounded by beautiful scenery.