What navigational right exists in a nation's internal waters?

Master the Navigation, Seamanship, and Shiphandling (NSS) – Officer of the Deck (OOD) Phase 2 Exam with engaging flashcards and multiple choice questions, complete with hints and explanations. Prepare comprehensively for your test!

In internal waters, the coastal state has full sovereignty, and foreign vessels do not have a general right of passage there; access is controlled and granted by permission. The only option that reflects a navigational facility available within those waters is Safe Haven/Harbor. A harbor is a location the state designates within its internal waters where ships can enter for shelter, docking, or cargo operations, typically with the state’s permission and regulations. The other options describe rights or concepts that apply in other maritime zones (freedom of navigation is not enjoyed in internal waters; innocent passage applies to territorial seas, not internal waters; archipelagic sea lanes pertain to designated routes through archipelagos). So Safe Haven/Harbor is the best fit for a navigational facility within internal waters.