Border checkpoint for passport control. The border between Costa Rica and Nicaragua stretches for 309 km, separating the two countries from the Caribbean Sea to the Pacific Ocean. Historically, after the dissolution of the Federal Republic of Central America in 1838, this dividing line was established. Although several treaties were signed to demarcate it, such as the Cañas-Jerez Treaty in 1858, subsequent disputes led to mediation by U.S. President Grover Cleveland in 1888. Recently, Costa Rica has brought a lawsuit to the International Court of Justice in The Hague to obtain navigation rights and resolve conflicts, such as the dispute over Calero Island in 2010.

Rivas

Visit Windy Lake Nicaragua and enjoy a typical Breakfast Lake Nicaragua, also known as Cocibolca or Granada, is the largest freshwater lake in Central America, covering 8,264 km2 (3,191 sq mi). It's of tectonic origin, with a maximum depth of 26 meters (85 ft) and elevation of 32.7 meters (107 ft) above sea level. The lake drains into the Caribbean Sea via the San Juan River, historically making Granada a port city. It's known for its diverse ecology, including bull sharks, tarpon, and sawfish. Concerns about pollution and environmental degradation have been raised, with efforts ongoing to address these issues. Additionally, plans for the Nicaragua Canal could impact the lake's ecosystem.