Blue Spring is a 3rd magnitude spring situated on the southeast shore of Lake Harris in a residential area with live oak, palm, and cypress trees. The spring pool has a sand bottom with spring flow from at least nine sandy boils. The pool is enclosed by a concrete retaining wall that forms a reverse L-shaped swimming pool. The pool discharges through a weir in the retaining wall on the northeast side of the pool, then into a run about 30 feet wide that flows southeast parallel to the lakeshore. The spring run flows about 100 feet to the south side of Lake Harris, with additional boils observed in the spring run. The site is privately owned and not open to the public. It is used as a swimming and recreational facility for local residents.
Blue Spring is located about 1.2 miles northwest of Yalaha. From the railroad tracks on the west side of Yalaha, drive toward the west on State Road 48 for about 0.8 mile, turn north onto Palm Drive (a paved road lined with palm trees) and continue 0.5 mile to Lake Harris. The spring site is to the east and about 150 feet south of the shore of the lake. The spring is on private land in The Springs residential community and permission must be obtained from the landowner before visiting the spring.