Christina Calayca, 20, vanished from Rainbow Falls Provincial Park, Ontario, on the morning of August 6, 2007. She had arrived the day before with a cousin and two friends for a spontaneous camping trip over the Civic Holiday weekend. An avid runner and recent Early Childhood Education certificate holder, Christina was last seen when she went for a jog; she was wearing a blue hoodie, a striped maroon and purple shirt, black pants, and white running shoes.

Hours passed before her friends reported her missing; park staff and the Ontario Provincial Police launched an extensive search but found no trace. The park’s terrain is rugged, which led some to suggest she might have become lost or injured, though the trails are described as well-marked and it is said to be unusual for people to disappear there. Investigators also considered an animal attack but found no supporting evidence.

Police continued to follow leads and re-interviewed the friends who had been with her; they have never been treated as suspects. The Calayca family and community have mounted their own searches and advocacy, and the Ontario government offered a $50,000 reward for information. The circumstances of Christina’s disappearance remain unknown; foul play has not been ruled out but no definitive explanation has been established.

If anyone was at Rainbow Falls Provincial Park that morning or remembers seeing Christina or her route, please share what you know.