Nicaragua Rio San Juan
The peaceful waterway of Rio San Juan passes through thick tropical jungle and reaches Reserva Biológica Indio Maíz, the largest nature reserve in Central America.
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.
Holidays Rio San Juan
From expertly designed Private Journeys to trail-blazing Group Tours, browse our range of carefully crafted holidays.
Costa Rica / Nicaragua
Active Costa Rica and Nicaragua: Rivers and volcanoes
16 days from £3,629pp
Group - Discovery
Cotinga: Off the beaten track Nicaragua
18 days from £2,886pp
Signature Nicaragua: Fire, water and revolution
10 days from £2,210pp
Costa Rica / Nicaragua
Signature: Best of Costa Rica and Nicaragua
12 days from £2,637pp
Where to go when - our guide to 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
Your edit for Latin American inspiration
Our exciting range of articles on Latin America explore everything from iconic destinations and lesser-known cultural gems to delicious traditional recipes. You’ll also find exclusive travel tips, first-hand client reviews and the chance to get your personal questions answered by our travel experts.View Extraordinary Inspiration
Real Latin America Experts
Sophie Barber - Travel Expert
Sophie lived in Chile before joining us and has travelled extensively across Latin America, from Mexico to the furthest tip of Patagonia and beyond to Antarctica.
Hannah Waterhouse - Travel Expert
Hannah had an early introduction to Latin America when her family moved to Ecuador and she returned to study in Buenos Aires for a year before backpacking across the continent.
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.
Hannah Donaldson - Travel Expert
Having spent part of her childhood in Colombia and worked in Brazil and Costa Rica, Hannah's ties to Latin America run deep. Hannah is a much valued Travel Expert in our Tailor-made Holidays and Group Tours sales team.
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.
Evie Oswald - Travel Expert
It's hard to believe that Evie has had time to cram so much in to her life so far. Having lived as a child in the Americas and Europe she found herself immediately attracted to Latin America.