Nhan Phuc Vinh seems to do the Sting Maze challenge (RB 1?) so Thuy Dung will do the Climbing challenge? That's tough for a girl even back in season 2, she did the climbing challenge in the final leg, too.
To be honest, TARVN still wants to do the physical challenges. I wonder how Brown team last year (Bang Di and Trang Phap) can do in this challenge if they are in this season. This is completely different from the last year's fall climbing and much more difficult.