Since I assume you will be shore fishing, any shoreline that has some lilly pads for cover should produce perch and gills. A drive around the lake to the Fundy ramp will provide access to a trail system that goes along the shoreline. Follow those trails and you will have reasonable access to fish holding lillies. Otherwise, look for anything the provides protection from the sun. Overhanging branches, the bridge that crosses to the island campsites are two good examples.