Lafayette Blue Spring discharges from a single horizontal vent in the south side of the sink depression. The spring pool measures 57 ft north to south and 102 ft east to west. Spring depth measures 21 ft. The water is clear and light bluish green. Algae are very thick on limestone and sand substrates within the spring pool and run. The spring run flows east approximately 300 ft before reaching the Suwannee River. Clear water from the spring contrasts sharply with the tannin-colored water of the river. Limestone is cropped out throughout the spring pool and run. A 20 ft wide land bridge stretches north to south across the spring run approximately 120 ft east of the vent. There is a narrow band of a few cypress trees near spring run.
The spring pool is steep sided with limestone and sand. Adjacent high ground is approximately 20 ft above the water level, and it is sparsely forested with a few pines and oaks. Several sinks and karst windows are present in the woods west of the main spring.
Lafayette Blue Spring is located 7 miles (11.3 km) northwest of Mayo on the west side of the Suwannee River. From the intersection of US 27 and SR 51 in Mayo, drive northwest on US 27 for 4.9 miles (7.9 km). Turn north (right) on CR 251B and continue for 2.1 miles (3.4 km) on a gravel road. Turn east (right) onto a dirt road and go 0.2 miles (0.3 km) to the county park entrance. Spring vent is east of the parking area in the pool farthest from the river.
For as well as this park is maintained it sure is in the middle of nowhere. Luckily I was hurrying down from Madison Blue Springs (to grab some pictures before the afternoon rains hit) so it was sort of on the way, but it's quite a trek for anyone living east of I-75. I'm pretty sure it's worth it.
The spring is actually a system of karst windows that navigate across the landscape from the south-west of the parking lot toward the Suwannee. The head "spring" emerges from the ground in a dark window (meaning you can't see into the cave very well - the limestone blocks most of the light). The water is visually separated into two pools, the first of which flows under a limestone bridge and into the other. I observed a turtle in the main pool and attempted to swim under the bridge but the low visibility made it too risky.
The second pool gets very shallow as it approaches the Suwannee River, which makes for some pretty nice wading and relaxing. The beach surrounding the mouth of the run is very wide and good for walking. There's also a set of stairs to the south of the beach that leads back into the park.
I almost left the park without finding the rest of the "hidden" karst windows. After rounding back from taking a couple final pictures, I noticed a trail into the woods just south of the bathroom. It's not cut very well and I was only wearing my flip-flops (mistake), but I crashed ahead and found two large karst windows and what looks like a sink (check the pictures below). I doubt it's a good idea to go into these formations but they were much more picturesque than the main spring.
Overall I really enjoyed the park. It had a nice variety of open springs and wooded karst windows, nice bathroom and changing facilities, and a very clean parking lot. Recommended.
799 N.W. Blue Spring Road
Mayo, Florida 32066