Lots of challenge pics to chip away at.IC:
Looks like they start on the bigger platform and have to race across the narrow plank to the middle smaller floating platform. Then there is another narrow plank to the farther side. Will they have to dive for things? Doesn't look too deep where they are?
Also, note that Lisa is wearing her brothers entire outfit, sent him home in his skivvies? And, Mike is wearing his son's t-shirt.
Then, the RC, has lots of structures with balanced tube-like things on top...
Perhaps, they are going to have to throw something to knock off those tubes. Too bad Kent isn't still here, he would have had an "arm" up! LOL!