La caverne à Martin is a boat accessible fresh water dive site, located in QC, Canada.
Note: GPS point is merely a rough estimate of this cave’s location.
This cave is located at a depth of 21 m (69’), its entrance is 7 by 8 m (23’ by 26’) in the shape of a church door. You can penetrate for 8 m (26’), and observe the stone columns left by erosion.