navigable
adjective /ˈnævɪɡəbl/
  /ˈnævɪɡəbl/
 - (of rivers, lakes, etc.) wide and deep enough for ships and boats to sail on
- rivers which are easily navigable
 - a plan to make the River Clyde navigable to Glasgow
 - The river now ceases to be navigable.
 
Oxford Collocations DictionaryNavigable is used with these nouns:- river
 - water
 
 - (of a website, app, etc.) on which it is easy to find the information, section, etc. that you want 
- This free, easily navigable tool is another online way to connect employers with job seekers.
 
 
Word Originearly 16th cent.: from French navigable or Latin navigabilis, from the verb navigare ‘to sail’, from navis ‘ship’ + agere ‘drive’.