Overview

The beautiful 170km-long Rio San Juan marks the border with Costa Rica and runs from Lake Nicaragua to the Caribbean Sea. Strategically important, it has a hectic history of disputes and attacks from outside Nicaragua and within. The remarkable fortress at El Castillo, built by the Spanish to repel pirates (although Horatio Nelson briefly held it after capture by stealth), bears witness to that. However it’s now a peaceful waterway passing through thick tropical jungle, where efforts are being made to encourage eco-tourism. Downstream from El Castillo is the primary rainforest of the Reserva Biológica Indio Maíiz, possibly the largest nature reserve in Central America.

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Rio San Juan

The weather in Rio San Juan is wide and varied

The Rio San Juan is 170 kms long and marks the border with Costa Rica. Passing through thick tropical jungle it was in the past strategically important and the fortress at El Castillo was built by the Spanish to repel pirates. Now efforts are being made to encourage eco-tourism and the area is home to one of the largest nature reserves in the region.

View our Rio San Juan weather guide

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  • Carrie
    Carrie Gallagher - Travel Expert

    A former JLA tour leader, Carrie brings a wealth of on-the-ground experience to our London-based Tailor-made and Group Tours department.

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    Paul Winrow-Giffin - Travel Expert

    After graduating in Computer Science, Paul spent seven months travelling from Colombia to Argentina and came home hooked on Latin America.

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    Charlotte Daubeney - Travel Expert

    Charlotte's fascination with Latin America began with a family holiday to Belize. She went on to study Spanish in school and at university before spending a year living in Santiago, Chile.

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    Heloise Buxton - Travel Expert

    Heloise started her Latin American journey as an exchange student in Santiago, Chile. With extended summer holidays this was the perfect opportunity to backpack through Bolivia, Peru, Argentina and Brazil.

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    Lina Fuller - Travel Expert

    Lina's passion for the continent where she was born really took off when she moved to Córdoba (Argentina) to study, spending the holidays travelling between Argentina and her native Colombia.

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    Chris Rendell-Dunn - Travel Expert

    Anglo-Peruvian Chris grew up in Lima and spent much of his adult life in between London and Cusco as a tour leader, before settling permanently in our London-based Tailor-made and Group Tours sales team.

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