already spiked to what we would later find out was like a 20-year high. >> the best case scenario is, is that this lasts a couple days, and then it starts to dry out. we can reset and try again. >> so it became not an easy decision but like a mandatory decision to get out of there. we left our boats out at the confluence area. the plan was to go back to the shelter. we had left a food cache there. along the way, just these tiny little tributaries that i had hopped across with my sandals on, on the way in -- >> one, two, three! >> all of a sudden, they're like raging torrents. we hiked all day. it took us like 8 1/2 hours to get back to the shelter. >> this place is messed up, and we really need to be careful.