on Metropolis Forums a user called TARFAN1 looked at the same thing patlini they were at the top of it as were all previous winners then the Nate and Jenn thing came up and well noone believed her now I am starting to believe her lol!!!!!!!!!!
Puddin in the screencaps Rachel and a few others are in a tank the things in the water are lobsters I believe and it seems to be a roadblock??
The creatures in the tank with TK and Rachel look like King Crabs - they are huge!. Since they are picking them up and looking at them and then putting them back they probably have to find a message on the back of one of the crabs.
This is one task of the DETOUR (Phil says so on the voice over).
The other task seems to be something to do with gutting fish (Ron and Chris)
The Ice Climb looks like the ROADBLOCK. We see Chris climbing and Ron cheering her on. Looks to me that the take the boat to the climb site - note that both Chris and Don are wearing life vests while the climb, the same ones that TK and Rachel have on in their scene in the boat.
My guess is that they take the boat to the climb site, find the clue, and one member of team climbs while the other member gets taken to the top of the glacier. Ron is looking down at Chris and you can see the water just under her as she starts the climb.
After the climb I think they get the clue that tells them to take the helicopter (you see one behind Ron on the Glacier) to the next location.