Got up at 6am to pack up. In securing my sled, I gave it a test pull and realized today was going to be a real challenge. The 5-6" of snow had a dense, heavy, sugary texture. Temps were in the single digits and once I got halfway across the bay, in the sun, I stopped to ensure the bottom of the toboggan was clear of ice or that I wasn't dragging something. Nope, just a heavy load and poor pulling conditions. I was breaking trail the whole way, bear crawling up hills, and generally struggling for the next 4 hours on the way out. I unloaded half the gear on the first hill off of Tuscarora pulled up and went back down for the rest of the gear. On the bright side, I was tipping less and now understood the importance of a rigidly secured and well-thought out toboggan stack. About halfway down the train, after slipping uphill and coming down on my shoulder (no injury but likely close) I started using my military surplus magnesium snowshoes for walking sticks. Poor traction on those anyway, but generally good and bombproof design. As I made it to Round, I was counting 200 steps and resting then repeating. The blue skies were beautiful on the way out. I was of course hoping to see someone on the trail, but no cigar. This was probably the most physically challenging thing I've done in the past decade. To be honest, next time I'll be a little more judicious with the weight of the toboggan load and also seek to bring a partner for longer overland trails to help guide the toboggan on challenging trail spots. I ate lunch around 1pm at the Gun Flint Tavern. The next day, I had a very erratic heartbeat and low blood pressure until 4pm. I considered going to the emergency room, but after placing a call to some nurse friends, it was clear that I should've drank more than the 2 liters of water and several mouthfuls of snow on the way out, should have sought to use some wind breaking clothing, and the adreneline was still working it's way out of my system. I've had arrythmias before when dehydrated, brought it up to the doctor and since I'm not yet 40, he's not been concerned. Anyway, even though I knew how easy it is to get dehydrated, I didn't know HOW easy. Next time I'll double/triple my intake while traveling. Great trip overal with lots ventured and learned.