By CBC News Ottawa, February 28, 2017
Officials are reminding people not to venture onto the Rideau Canal Skateway because the ice is melting and water levels below can be as deep as 4.3 metres.
The thin layer of ice on the canal is shrinking and may hide hazards that aren't visible, the NCC said in a news release Tuesday.
http://www.cbc.ca/news/canada/ottawa/rideau-canal-ice-safety-warning-1.4002827