The unidentified boy, 13, visited the Fogolars Italian country club Wednesday with his family and climbed a tree on the property whose leaves partially hid an electric wire.
He climbed as high as 7.5 meters (24.6 feet) before he came in contact with the wire, received an electric shock and struck several branches as he fell to the ground, a statement by Halston Regional Police said.
The teen was taken to McMaster Childrens Hospital in Hamilton, Ont., and was in serious but stable condition, the Toronto Sun reported Thursday.
The country club will remain closed and without power until the end of the week to accommodate an ongoing investigation, board member Luigi Scotta said.
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