Cat & Jesse also arrive at the stacking.
It is basically Australia and New Zealand each claiming one Detour as their own.
All three teams study the stack closely. Cat thinks they need to fill the entire marked area, even though it is longer than the length of the example stack, and so there is some uncertainty about that.
Teams aren't too sure whether they need to just stack it anywhere in the area or if they need to match the reference. Carla & Hereni are building similar to the stack.
Sally & Tyson are done with the task, but Tyson cannot go to the toilet... it's too cold in there!
Sally: I had to keep screaming to make sure I wasn't dead.
Tyson will perform the RB.