Mount St. Double Dare (also known as Mt. Saint Double Dare) is an obstacle in Double Dare.
In the 2018 revival, it is always the last obstacle on the course. It consists of a mountain looking like a volcano with green slime "lava" flowing down it. When contestants reach this obstacle, they have to climb up it and grab the flag in order to finish off the obstacle course and win the grand prize.
For the 2018 revival's Halloween special, Double Scare, it was renamed 'Mount St. Double Scare'.
- One running gag in the 2018 series is Liza or the contestants saying the name of the obstacle and smoke coming out of the top. Her reactions are different throughout each episode, sometimes being spooked by the noise and other times pumping up the contestants.