nouria has us at 3,200 meters. i had us at 10,800 feet.'re within 50 meters or so, and we're going to hit this really steep stretch of river that we kind of anticipated might be at full portage, full like two-day portage. >> the portage is basically a way around running a section of river. so you'll put your kayak on your shoulder and hike around that rapid. >> we hit this relatively short section of river, maybe only three kilometers, but it slowed us down to a crawling pace literally because we were like crawling over giant boulders, trying to portage sections of river that were completely unsurvivable. >> there's no point even scouting. when you see the gradient, you know it's not going to go. >> yeah. >> [ bleep ], [ bleep ]. >> hold on. stop! >> [ bleep ]. >> hold on! >> nouria bobbles my boat for a second over a river that would kill you if you slipped in there. i just [ bleep ] lose my mind. i start cussing like a sailor. >> easy, easy, easy. >> when you're in these group dynamics, when somebody is pushing, somebody else is pulling.

. >> i think that was an uncomfortable place for especially nouria to be the one for the very first timeareer that wanted to evacuate. i'm fully committed to going downstream. i'm not really there to consider backing down. >> yeah, the clouds over there and the mountains are starting to open up. everything's pushing out, and the east side is looking clear, but it's not going to last forever. there is another front coming in, so we get, like, one shot, i guess, this afternoon, hoping that it stops raining out there, but realistically, if we don't do it today, we may not do it for a couple days. so this is our shot. >> every time you bring in a helicopter into any kind of rescue, everything can go wrong really fast. we have some very unique conditions, which involves temperature and high elevation. >> we can barely hover here. it's too unstable to get any closer to the beach. >> heli-extraction here is too risky. we're just going to do a food drop and get out of here. >> this is not good. the only thing that they can help us with is just for supplies from the sky. extraction is not possibl