Complex sentence: Once all three challenges are completed, they must solve a riddle to the location of the finish line, which is a suite where Daniella and the parents of the teams are waiting, and the team must race there.
Split into simpler sentences: Once all three challenges are completed, they must solve a riddle to the location of the finish line. The riddle's answer is a suite where Daniella and the parents of the teams are waiting, and the team must race there.