A 10-year-old boy is being treated in a hospital after surviving a 100-foot fall over the railing at Niagara Falls.

The boy was visiting the tourist attraction Sunday with his family and stopped to take a photo for his mom.

While posing on the railing, he lost his balance and fell backwards into a gorge, the BBC reported.

The 10-year-old was airlifted to McMaster Children’s Hospital in Hamilton, Ontario.

His injuries were initially considered critical, but the hospital said Monday that he was in stable condition.

Police are investigating the incident.