Okay, so when I was younger my mom and I watched this movie about two sisters. And one had blonde hair and the younger one had brown I think. The older sister wanted to experience life and travel with her friend. Every place she went to she sent her sister a think a postcard or picture. After a while the younger sister stops receiving anything from her sister. So she finds her sisters old friend and they set out to the places where she had been in order to find her. In the end the girl falls for the guy and finds out that her sister died.