As Peek said, the 955 from Little Nadine to Little Osler. I booked this route two days ahead of time, while at work and only glancing at Jeff's map long enough to go "yep, those lakes connect".
Night 1, I'm camped out on Erables and finally have time to sit down, relax, and look at my next day's route - Erables to Nadine. I'd already flagged it as a kind of sucky travel day with 7 portages totaling ~5km (kayak, a lot of loading and unloading), but as I sat down and took a good look at the map, I saw "Heart Attack Hill" for the first time. Holy hell, a 90 meter elevation change in 2/3rds of a 955m portage. I got up early and got on the water early, because I had no idea what that portage was going to feel like. I mean, I knew it was going to feel like crap, but I didn't know to what extreme it was going to feel like crap.
I was already through four portages that day when I reached this one. I'd seen it on the map, I knew what was coming, and I went into it with the mindset that it was going to suck - and that was what saved me. I expected it to be terrible, it was terrible, and I came out the other side intact. I started out single portaging, full of confidence. Then I got to where the serious climb began, and I started to wonder if double portaging wasn't going to cut it. I'd struggle up the hill for ~50 feet with my pack, hunched over, gasping for air and feeling the burn in my legs, leaning against every conveniently placed tree, then I'd walk/fall down the hill, pick up my kayak, and struggle it up as far past my backpack as I could manage. Rinse, repeat, for what felt like a damn eternity. The worst part is that the last ~300m of that portage is a steep drop back down the waterline, so you can't even really feel like you accomplished something. You climbed a hill just to go back down.
Then I did two more portages that day. Good thing Nadine Lake turned out to be pretty nice.
