The Serra Geral is a mountain range in southern Brazil, constituting the southern portion of the Serra do Mar system which runs along Brazil's southeastern coast. The Serra Geral runs parallel to the Atlantic coast in Santa Catarina and northern Rio Grande do Sul states, separating a narrow coastal plain from an interior plateau. The coastal plain is characterized by short rivers and frequent lagoons and bays, and lies within the humid tropical Serra do Mar coastal forests ecoregion.
The plateau to the west of the range is drained by tributaries of the Uruguay River, including the Pelotas and Canoas, and by the Jacuí River and its tributaries, which drains south into the Lagoa dos Patos of Rio Grande do Sul. The plateau is home to the subtropical Araucaria moist forests.
The Serra Geral is home to Aparados da Serra National Park and Serra Geral National Park, which are notable for their enormous canyons.
Caracol Falls, or Cascata do Caracol, is a 426-foot (130 meter) waterfall about 4.35 miles (7.00 km) from Canela, Brazil in Caracol State Park (Parque do Caracol). It is formed by the Caracol River and cuts out of basalt cliffs in the Serra Geral mountain range, falling into the Vale da Lageana. The falls are situated between the pinheiral (pine forest) zone of the Brazilian Highlands and the southern coastal Atlantic Forest. The base of the waterfall can be reached by a steep 927-step trail maintained by the Projeto Lobo-Guará.
Caracol Falls has long attracted visitors and is the second most popular natural tourist attraction in Brazil, trailing only Iguazu Falls. In 2009, it received more than 289,000 visitors. There is a nearby 100-foot observation tower that offers an elevator and a panoramic view, as well as a cable car that gives tourists an aerial view of the waterfall. The area also provides a restaurant and craft stalls.