Nicaragua
Still wonderfully remote border river between Nicaragua and Costa Rica connecting vast freshwater Lake Nicaragua to Atlantic Ocean. A long slow river journey through the jungle. Place to overnight is at the Eco Hotel in tranquil El Castillo about a third of the way to the Atlantic; no cars, only river traffic. They organise jungle trips and used to serve great tropical lunches.
Fly to San Carlos from Managua and pick up boat down river from there to El Castillo.
Alternatively a long uncomfortable overland journey by bus on un made up road round northern tip of the lake via Jinotepe - or cross the lake on a ferry from Granada to San Carlos
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