The York Simcoe Naturalists Group will hold a walk in the Cawthra Mulock Nature Reserve on Tuesday June 14, 2011.  Entrance to the Reserve is off Bathurst St. just north of Mulock Drive.  Look for the signs.   Drive to the end of the driveway.  Walk will last approximately one hour.  Dress appropriately.  Bring your binoculars, camera and bug spray.