Late night, late start. Then I got lost (when I75 and I71 parted I stuck with I75 instead of I71), resulting in about 100 extra miles. Mammoth Cave National Park is still on Winter hours. All this added up to me missing the last tour of the caves. Since I'm less than two hour from Nashville, I decided to stay the night here, catch the early tour of the caves, and then head for the Grand Ole Opry 2:30 matinee. Heavy thunderstorms and rain once again kept me from camping. So with the unexpected free time I'm sitting in a Laundromat doing many loads (everything was dirty!).