Park at the Pat Thomas Park at Hopkins Landing. The cache is only 0.2 mile away!
Allow an hour and a half for the hike. I didn't find any trails; it's a trudge through the wilderness. You will need to find your way across three small creeks, but they're small enough you can find a spot to jump them. If it's been raining recently, there's likely to be a lot of mud near those creeks.
The boundaries of this park are clearly marked -- in fact, it appears they've been recently surveyed. But it's not fenced, at least not as of this writing. Please take care not to wander off park property onto private property.
Cache is a large plastic screw-top jar with room for travel bugs and the like. The jar has been camo painted and is in a tan plastic bag.
This park is really nice. There's fishing, a boat ramp, camping, RV sites with power and water, picnic tables, even a playground for the kids. There are fees for camping or launching boats, but it's free to picnic or geocache. The park is open to non-campers from 6 AM until a half hour before sundown -- but a sign at the park indicated it's open until 10 PM. You can call Park Ranger Robert Rosenberger at (850) 875-4544 for more park information.