You are looking for a blue tupperware-type container, about 8 inches by 6 inchs by 4 inches. It was replaced in March, 2015 due to deterioration of the original.
There are a couple of paths to follow, but the most enjoyable route starts at the trailhead at N 28° 05.143' and W 82° 36.007'. Be aware, though, that you can not make a bee-line to the coords - the trails meander and turn quite a bit, so just stay on them. They all are wide, clear and pretty well marked.
Note: A county permit is NO LONGER needed to park at this facility. Recent renovations have opened up an accessible parking area.
The area used to be a citrus grove, but now appears to be set aside for equestrian (and hiking) activity. Foot and bicycle traffic are acceptable, but no motorized vehicles past the parking area. If you want to bike it, it had better be an off-road bicycle because there are patches of soft sand along the trail.
There are a number of interesting sites to spot along the way; one could spend several hours exploring all the trails, and some of them may even connect up to a wider horse tail system.
You will stay on the trail until you're almost to the cache location - the "bushwaking" required is minimal and the final location is not hard to get to. (Specifically, there is no need to get wet - don't even try). Just pay attention to the description above.
When we placed it, the GPSr was having a little difficulty getting more accurate than 30 feet (there is some tree cover in the area), so the coords above are averages of several readings.
The area is clearly marked for daylight use only, so sorry, no moonlight caching on this one.