Christina Calayca was known to be bubbly, hardworking, and a natural leader. She worked as a daycare teacher and volunteered with a youth ministry in Toronto. She had plans to travel to the Philippines for missionary work and attend teacher’s college. However, on August 5, 2007, Christina went on a camping trip to Rainbow Falls Provincial Park with her cousin and two friends from her church group. The group woke up after a nap, and Christina decided to go for a jog while the others slept. She never returned. Despite a massive search effort by authorities and private searches, no trace of Christina has ever been found. This is the story of the unsolved disappearance of Christina Calayca, the bubbly Toronto daycare teacher who vanished into thin air.