In South Carolina, there are some circumstances in which the family court will award a grandparent visitation. The court may order grandparent visitation if the child’s parents are unreasonably depriving the grandparent of the opportunity to visit with the child, including denying visitation for the minor child for a period exceeding 90 days and

  1. The court finds by clear and convincing evidence that the child’s parents or guardians are unfit; or
  2. The court finds by clear and convincing evidence that there are compelling circumstances to overcome the presumption that the parental decision is in the child’s best interest.

See SECTION 63-3-530. Jurisdiction in domestic matters.