A ramble down to GA to do Stonewall Falls and White Twister and back on mostly gravel FS roads up the back way between Highlands and Dillard, to celebrate the summer solstice.. Was pretty warm, upper eighties to low nineties and no clouds in the sky. Had a good ride through the trails with no troubles, and basically had them to myself as I didn't see anyone else the whole time, even at the falls. Drank between 10-12 33 oz bottles of water, which I obtained from creeks and filtered using a small squeeze filter. First time i've used such a system on a long ride. Worked very well. Felt bad while climbing Hale Ridge and ate nearly the remainder of my food. Despite bringing what I thought at the start might be an excessive amount of food, I still ran out soon after. Had a bit of a 2nd wind after and continued on the planned difficult route even though I had thoughts of taking the easy mostly downhill paved route. Felt pretty decent at the end even though I was quite hungry. Had a blast.