What boats accompany with the Naval Hospital Ships?

Cruise ships only need tender boats at ports where they have to anchor and they don't go into the dock. The hospital ships don't need anything to transport people because they are going to docks. Looks like they need tugs to push them into the docks as they are old and don't have thrusters built into the hulls. Tugs don't go with ships, they stay in ports and get each ship that comes into the harbor.