Parking is available either in the Lynnville Park, which has a $2 entrance fee, or the grounds of the Coal Museum, which is free. There are many motorcycle trails through the park grounds which may or may not get you closer to the cache depending on which one you take; although this one should be pretty straight-forward to get to as it is near the drive to the boat ramps. Please do not park past the parking limit for vehicles needing to use the boat ramp.
Stealth may be needed depending on how busy the boat ramps are. How much stealth? Stealthy, but not suspicious... I don't know; act natural! Please re-hide in the same spot as good as found or so not exposed to passing eyes.