ferry boat 
Shuttle boat for carrying vehicles with their cargo and passengers.
Covered glassed-in platform from which officers and crew navigate the vessel.
Metal conductor that emits and receives radio waves for communications.
Detection device that emits radio waves and receives their echo; it is used to avoid collisions and to navigate when visibility is reduced.
Machinery that regulates the cabin’s temperature and humidity.
Multipurpose antenna that receives and transmits various signals such as video, telephone and digital.