Haw. Rev. Stat. § 571-97: Delegation of the deployed parent's contact rights to another.

(a) Upon motion of the deploying parent and consistent with the best interest of the child, including safety considerations in cases involving a finding of domestic violence, the court may delegate the deploying parent's parent-child contact rights, or a portion thereof, to a family member, whether biological or by adoption, or to a person to whom the deploying parent is married or with whom the deploying parent cohabitates; provided that the family member or person has an existing close and substantial relationship with the child.

(b) Any delegated parent-child contact under this section shall not create separate rights of or standing to assert any rights to parent-child contact or any other contact for the family member or person. Any parent-child contact delegated under this section shall cease pursuant to court order, upon the return of the deployed parent, or upon the deployed parent's death.