By Mary Cutler, CBC News, May 10, 2019
The students of Gradale Academy in midtown Toronto are on their way to a place they call "Mud Mountain" for some outdoor time that may offer an antidote to everyday problems affecting their physical and mental health.
Situated near their school around the trails of the Don Valley, "Mud Mountain" is, yes, dirty and mucky. Armed with clipboards, the students, who range from kindergarten to Grade 6, examine the foliage and wildlife of an early spring day.
But researchers believe nature offers more than just its beauty; it offers serious academic and mental-health benefits.
https://www.cbc.ca/news/health/nature-health-1.5128482