Río San Juan

Rio San Juan is a department of Nicaragua. It was established in 1957 as territory of Chontales and Zelaya. Its area is 7,473 km ² and has a population of 95,500 inhabitants (census 2005). Its capital is San Carlos. The department also includes the archipelago of Solentiname and San Juan River, which takes its name. The river proved to be a great connection for the Province of Nicaragua with the rest of the Spanish territory. Through it, Granada and other colonies traded with cities such as Havana, Cartagena and Portobelo. This was known by the pirates who roamed the Caribbean, and soon made inroads through San Juan.

Entered the river pirates and buccaneers like Henry Morgan, John Davis, John Morris, Harrison, François l’Ollonais, among others. Although they were sometimes rejected, most of the time they took the fort of San Carlos, and then attack the city of Granada and León, where they took treasures, public goods and prisoners. To defend the passage of the river, the Spanish began to build fortifications along its banks. At one time there were up to 12 forts along the San Juan. The largest of them, and first to be built (1675) was la Fortaleza de la inmaculada concepción (the Castle of the Immaculate Conception).

This fortress survived fierce battles against pirates, Miskito (it was a kingdom established in the Caribbean Indigenous and supported by England), American filibusters and especially British troops.

During the years of war between Spain and England, a substantial British force and attempted to take the river Miskito. In the El Castillo, the head of the garrison had been killed before the attack, and it was his daughter, the heroine Rafaela Herrera, who led the defense against a superior force of invaders, who could not take the fortress.

Discover Río San Juan



Archipiélago de Solentiname

Gold Route

Most travelers took the sea route, preferring to Nicaragua on Panama, therefore, the ease with which it offered, the dazzling visual spectacle of the Nicaraguan jungle, made it the most enjoyable.
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Museo de La Fortaleza (Interior)

Colonial Fortresses

The discovery of the drain opened a new era of dynamic exchange and trade between South America and Spain.
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The route of birds

Due to its privileged geographical position, Nicaragua is the natural bridge where meet species from north and south America.
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Mono congo

The trails of the naturalist

To the rude and ruthless conquerors pirates, America represented opportunities and wealth.
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Places of interest

28 February, 2018

Indio Maiz Biological Reserve

Indio Maiz Biological Reserve is considered one of thebest preserved nature reserves in Nicaragua. It is located on the southeast corner of the country, bordering the San Juan River. The reserve comprises 3,180 km ² and is home to a wide variety of jungle animals. Among them there are hundreds of species of birds, including toucans, macaws, hummingbirdsand parrots. The […]
28 February, 2018

The Wildlife Refuge Guatuzos

28 February, 2018

The Fortress

The Fortress of the Immaculate Conception is the mostsignificant of the town, the only strength of the time, built in 1675, is itself ahistorical value and a tourist atractivito. Fortress was built to resist the piratesand privateers who raided more than once from the Caribbean coast of […]
28 February, 2018

Reserva Natural Bartola

Estación Biológica sobre el Rio San Juan, a meida hora de El Castillo de la Inmaculada […]
28 February, 2018


Solentiname was considered a sacred place, and his fame and influencecovering an area that stretches from Mexico to Colombia, blending different cultures in different eras. Furthermore, by its geographical position, near the Rio San Juan and the wealth of natural resources in the fertile volcanic […]
28 February, 2018

The Castle of the Immaculate Conception

The Castle of the Immaculate Conception, located in Rio SanJuan, Nicaragua, being declared “World Heritage”along with other strength of Central America, the Caribbean, Mexico and Venezuela. This decision will be made by the United Nations Fund for Education and Cultural Organization (UNESCO) as the text tells of the Organization of American States, […]