In 2010, our five-year-old daughter, Lily, was diagnosed Acute Lymphoblastic Leukemia (ALL). Whenever Lily was released from the hospital, and the weather cooperated, we headed outside. We really started to depend on these adventures, these outdoor excursions, to get us through the bad days and help Lily along her road to recovery. According to the National Environmental Educational Foundation, exposure to nature can reduce stress levels by as much as 28 per cent in children. Health benefits of nature may include reduced anxiety and depression, increased energy and immunity, decreased stress and improved mental health.