[@rush99999] 

Brut can easily climb up to the wooden beam holding the cage aloft, and jump to the next beam holding a different cage.

Bending the bars on the other cages will still require a Nat 20.
However, unlike the previous cage, Brutrumukk will be balancing on the edge of the cage and holding on to the bars to not fall into the water below.

If Brutrumukk rolls a Natural 1 on his Athletics check to bend the bars, he will fall.

Good luck!