Lake Nicaragua in the context of "Concepción (volcano)"

Attempts to build a canal across Nicaragua to connect the Atlantic Ocean and the Pacific Ocean stretch back to the early colonial era. Construction of such a shipping route—using the San Juan River as an access route to Lake Nicaragua—was first proposed then. Napoleon III wrote an article about its feasibility in the middle of the 19th century. The United States abandoned plans to construct a waterway in Nicaragua in the early 20th century after it purchased the French interests in the Panama Canal, which has served as the main connecting route across Central America since its completion.

Because the steady increase in global shipping may eventually make the project economically feasible, speculation on a new shipping route has continued. In June 2013, Nicaragua's National Assembly approved a bill to grant a 50-year concession to the HK Nicaragua Canal Development Investment (HKND) to manage the Nicaraguan Canal and Development Project to build the canal, but little development took place, and the concession to HKND was cancelled in May 2024.

The Amerrisque Mountains (Spanish: Serranías de Amerrisque, Cordillera de Amerrisque) are the central spine of Nicaragua and part of the Central American Range which extends throughout central Nicaragua for about 700 km (430 mi) from Honduras in the northwest to Costa Rica in the southwest, just a few miles from the Caribbean. The Amerrisques also are known as Cordillera Chontaleña at their central range. Its coordinates are 12°12'0" N and 85°19'0" W in DMS (degrees minutes seconds) or 12.2 and -85.3167 (in decimal degrees) and is 329 meters above sea level.

Amerrique is the Mayan name of the mountains between Juigalpa and Libertad in the Chontales Department in Nicaragua; these mountains separate Lake Nicaragua from the Mosquito Coast. The Mayan name Amerrique signifies "the country of the wind", "the country where the wind blows constantly". The range is named after the Amerrisque tribe, who are fast fading away. It is supposed that the Amerrisques were once powerful, but very little is known concerning them. The decay of their speech went on for a long time before contact with Europeans, and the name by which the people and the mountains are now known is, not improbably, the bare remnant of the original word, which may very well have been something like Amerristiquiqque, shortened successively to Amerristique and Amerrisque.

Mombacho is a stratovolcano in Nicaragua, near the city of Granada. It is 1,344 metres (4,409 ft) high. The Mombacho Volcano Nature Reserve is one of 78 protected areas of Nicaragua. Mombacho’s last eruption occurred in 1570. There is no historical knowledge of earlier eruptions.

The highest regions of the volcano are home to a cloud forest and dwarf forest, which contain flora and fauna endemic purely to the volcano. An increasingly popular tourist attraction, the volcano has views of Lake Nicaragua and the city of Granada. The volcano also has two hiking trails, a moderate one that circles the main crater, and another, more difficult trail (El Puma), which must be led by a guide. The more difficult trail is the only way to see some features such as the dwarf forest. The trail is almost completely 45° inclines and declines for about two miles.

The bull shark (Carcharhinus leucas), also known as the Zambezi shark (informally zambi) in Africa and Lake Nicaragua shark in Nicaragua, is a species of requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers. It is known for its aggressive nature, and presence mainly in warm, shallow brackish and freshwater systems including estuaries and (usually) lower reaches of rivers. Their aggressive nature has led to ongoing shark-culling efforts near beaches to protect beachgoers, which is one of the causes of bull shark populations continuing to decrease. Bull sharks are listed as vulnerable on the IUCN Red List.

Bull sharks are euryhaline and can thrive in both salt and fresh water. They are known to travel far up rivers, and have been known to travel up the Mississippi River as far as Alton, Illinois, about 1,100 kilometres (700 mi) from the ocean, but few freshwater interactions with humans have been recorded. Larger-sized bull sharks are probably responsible for the majority of nearshore shark attacks, including many incidents of shark bites attributed to other species.

The San Juan River (Spanish: Río San Juan), also known as El Desaguadero ("the drain"), is a 192-kilometre (119 mi) river that flows east out of Lake Nicaragua into the Caribbean Sea. A large section of the border between Nicaragua and Costa Rica runs on the southern bank of the river. It was part, with the lake, of a proposed route for a Nicaragua Canal in the 19th century. The idea of the project has been revived in the last decade, including the possibility of other routes within the country. The Ecocanal project has obtained a Concession from the National Assembly of Nicaragua to re-open the San Juan River to commercial barge traffic.

The Cañas–Jerez Treaty states that Nicaragua owns the waters of the river and that Costa Rica can only use it for commercial navigation on certain parts of the river at Nicaragua's discretion.

The Nicaraguan Canal and Development Project, informally the Nicaragua Canal (Spanish: Canal de Nicaragua, also referred to as the Nicaragua Grand Canal, or the Grand Interoceanic Canal) was a proposed shipping route through Nicaragua to connect the Caribbean Sea (and therefore the Atlantic Ocean) with the Pacific Ocean. Scientists were concerned about the project's environmental impact, as Lake Nicaragua is Central America's key freshwater reservoir while the project's viability was questioned by shipping experts and engineers.

Construction of a canal using the San Juan River as an access route to Lake Nicaragua was first proposed in the early colonial era. After the United States purchased the French interests in the Panama Canal in the early 20th century, it decided not to build in Nicaragua, but it secured rights and conducted studies for such a canal as a supplement.

Lake Managua (Spanish: Lago de Managua, [maˈnaɣwa]), also known as Lake Xolotlán (Lago Xolotlán), is a freshwater lake in Nicaragua. At 1,042 km², it is approximately 65 kilometres (40 mi) long and 25 kilometres (16 mi) wide. Similarly to the name of Lake Nicaragua, its other name comes from the Nahuatl language, possibly from the Spanish Tlaxcaltec and Mexica allies but most likely from the Nicarao tribes that had already settled in the region. The city of Managua, the capital of Nicaragua, lies on its southwestern shore.

Managua (Spanish pronunciation: [maˈna.ɣwa]) is a department in Nicaragua. It covers an area of 3,465 km and has a population of 1,559,774 (2021 estimate), making it the country's most populated department. The capital is the city of Managua, which is also the capital of Nicaragua. The department has two coastlines, on the Pacific Ocean and on Lake Managua, but does not border Lake Nicaragua. The Nahua chiefdom of Tekwantepek was located in the Managua department. According to Spanish conquistador and historian Gonzalo Fernández de Oviedo y Valdés, Tekwantepek was one of the last chiefdoms in present-day Nicaragua to fall to the conquistadors and their central-Mexican allies. The chiefdom's name is a combination of the Nawat words tēkwani (jaguar), and tepek (hill), therefore the translation of Tekwantepek is "hill of jaguars" or "jaguar hill". The municipality of Ticuantepe located in the department is likely named after this chiefdom. The Indigenous inhabitants of Managua are the Chorotegas and Nahuas.