The 11-acre Ballahack Preserve's trail is best accessed at the dead-end of the Ballahack Road Extension (Ballahack Rd. #3). There is evidence of an old woods road that serves as a portion of the trail as it meanders through the preserve, eventually accessing Lakeside Drive. The preserve has a varied terrain of wetlands and upland hardwood habitats. The trail has some steep inclines as well as gentle grades and level ground. A healthy understory of mountain laurel flowers in mid-June. In winter, there are lovely views of Bashan Lake.
This preserve is part of the Lyme Forest Block Important Bird Area.