The most appropriate camp option for an 8 year old girl is a day camp program. Day camps are offered by local community centers, schools, youth groups, and some times by the local sports or arts centers. An 8 year old girl would really enjoy a program that provides a good combination of creative arts classes, like pottery, drawing, and active workshops, like yoga and dance. You also want to make sure that she gets exposure to some team sports and swimming, as these activities develop very important skills for her development.