Grandfathers Lake is a small freshwater lake located in the community of Mount Thom west of Botany Bay Lake.  The surrounding terrain is typical of the Cobequid uplands; forested, hilly, and shaped by glacial deposits. The lake itself is modest in size and elevation, forming part of a network of small lakes and brooks that drain toward  tributaries of the Stewiacke system. Its remote setting and natural shoreline make it a quiet destination for anglers, hikers, and outdoor enthusiasts seeking solitude in the county’s interior.