major cities and towns provide some kind of public transportation including buses and taxis which implies making your way around in Nicaragua is not a difficulty.
Facts about pretty much all sorts of public transport in Nicaragua for example airlines, airports in Nicaragua, bus routes, driving maps and trains in Nicaragua are published here.
The tables beneath will give you more info on the travel choices to get around Nicaragua: Travel by rail, travel by air, and travel by bus and car.
Airports in Nicaragua
Public Transport in Nicaragua
Nicaraguan Public Transport Questions