Blueberry Spring is a 5th magnitude spring that discharges from a small sand boil in the hillside. The circular pool is about 5 feet in diameter, with organic debris and white sulfur-reducing bacteria covering the pool bottom. Several more sand boils are present in the run further down the hillside. The spring runs toward the east to Black Water Creek.
Blueberry Spring is located in the Seminole State Forest about 3.5 southeast of Cassia. From the south entrance of Seminole State Forest on State Road 46 (about 0.4 mile west of the Wekiva River), turn north and drive past the stop sign, through the gate, and cross the bridge over Black Water Creek. Drive about 0.2 mile from the bridge to the next intersection. Turn to the left and go toward the southwest for 0.5 mile, veer left and drive another 0.3 mile (0.1 mile past Moccasin Camp Road) and park. Walk about 300 feet to the east toward Blueberry Spring. Access and fee information can be obtained at the Seminole State Forest south entrance.