The facility which is not provide by the port authority is?

The facility that is not provided by the port authority is a tarmac. A tarmac is a paved area, typically used for landing and takeoff of aircrafts. On the other hand, a port authority is responsible for managing and operating port facilities, such as berths for ships to dock, warehouses for storage of goods, and cranes for loading and unloading cargo. So, a tarmac is not typically part of the responsibilities of a port authority.