Our worry today was HEAT...and getting through Chattanooga. Their BIG River Bend  Festival is this week and we knew activities would be happening on the river...we also knew there would be increased boat traffic in the area. True, True and true...but not to worry, even though our chart plotter went down, we breezed into the lock...and right on by those festival-goers...boats, jet skis and wake boarders....It was definitely much busier than when we visited earlier. Oh, and chart plotter situation was resolved without much anxiety...just turn it off and back on again...who knew??? Only took us about 30 minutes to figure that out!!!