Children will usually benefit from continued contact with all relatives on both sides of the family. Such relationships should be protected and encouraged. But relatives, like parents, need to avoid being critical of either parent in front of the children. Parents should have their children maintain ties with both the maternal and paternal relatives. Usually the children will visit the paternal relatives during times when the children are with their father and the maternal relatives during times when they are with their mother. This may include allowing the children to spend time with these relatives even when the parent is not present.
SDCL tit. 25, ch. 4A, app TO CHAPTER 25-4A, Guideline 4, 4.2