Directions From South Carolina

North of Exit 14
Take I-85 South to Exit 14. At the top of the exit ramp, turn left on Hwy. 187. Follow Hwy. 187 to stop light and turn left. You are now on Hwy. 187 / 24. After crossing the lake look for Hwy. 187 to split. Turn right on Hwy. 187. Stay on Hwy. 187 and go past Sadler Creek State Park. Turn right on Hwy. 29 and right at Jct. 412. Follow signs to Big Water Marina.
South of Exit 14
Take I-85 North to Exit 14. At top of ramp turn right and follow the directions above.

Directions From Georgia

Take I-85 to Hwy. 17 So., Exit 173 to Lavonia, to Hwy. 77 to Hartwell, GA. In Hartwell, take Hwy. 29 North toward Hartwell Dam and Anderson, SC. Go 2 miles past Hartwell Dam. Turn left at Jct. 412 Follow signs to Big Water Marina.

For exact door to door directions with milage and times try this link