If grandparents’ visitation rights are being violated by the custodial parent, they should start by documenting all instances of denied visitation. They should attempt to resolve the issue by communicating with the custodial parent and possibly using a mediator. If these efforts fail, they can file a motion with the family court to enforce the visitation order. Seeking legal representation can help navigate the legal process and ensure their rights are upheld. Taking these steps can help maintain the grandparent-grandchild relationship.