A terrifying scene unfolded at a Pennsylvania amusement park this weekend when a young boy was caught on video walking along the monorail track as stunned guests watched from below.

According to Hersheypark, the child was reported missing around 5 PM Saturday after being separated from his parents. While crews searched, he managed to slip into a secure area of the monorail ride, which officials say was closed and safeguarded by a chained gate and barricaded turnstile.

Video shows the heart-stopping moment as the boy teetered dangerously close to the edge while lingering at the empty station before taking a few steps onto the high track where crowds gathered beneath, frantically trying to guide him to safety.

That’s when a guest sprang into action — climbing onto the rail to pull the child back to safety. Hersheypark says its team immediately responded, reuniting the boy with his parents unharmed.