Dry docks are specialized facilities used for the repair, maintenance, and construction of ships and boats. These facilities are designed to allow vessels to be lifted out of the water and placed on a platform, allowing workers to access the hull and other areas that are normally submerged. Dry docks are typically used for larger vessels that cannot be serviced while in the water, such as cruise ships, cargo ships, and naval vessels. The process of dry docking involves draining the water from the dock, positioning the vessel on the platform, and then refilling the dock with water once the work is complete.