Nature Conservancy buys mysterious underwater caves in Ottawa Valley
Ottawa Citizen

By Tom Spears, Ottawa Citizen, November 20, 2014

The Nature Conservancy of Canada plans to buy 30 hectares of land on the Ottawa River to protect Canada’s longest — and perhaps most mysterious — underwater caves. The Gervais caves, named for the family that now owns the land, run four kilometres through limestone rock near Westmeath, east of Pembroke. via Nature Conservancy buys mysterious underwater caves in Ottawa Valley | Ottawa Citizen.

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