Lake Guajará () is a lake of

Marajó Marajó () is a large coastal island in the state of Pará, Brazil. It is the main and largest of the islands in the Marajó Archipelago. Marajó Island is separated from the mainland by Marajó Bay, Pará River, smaller rivers (especially M ...

, which itself is an island in the mouth of the

Amazon Amazon most often refers to: * Amazon River, in South America * Amazon rainforest, a rainforest covering most of the Amazon basin * Amazon (company), an American multinational technology company * Amazons, a tribe of female warriors in Greek myth ...

. It lies slightly to the north-east of

Lake Arari Lake Arari () is a lake of Marajó, which itself is an island in the mouth of the Amazon. It is located in the state Pará in northern Brazil, divided between the municipalities Cachoeira do Arari and Santa Cruz do Arari. Slightly to the north-eas ...

. It is located in the state

Pará Pará () is a Federative units of Brazil, state of Brazil, located in northern Brazil and traversed by the lower Amazon River. It borders the Brazilian states of Amapá, Maranhão, Tocantins (state), Tocantins, Mato Grosso, Amazonas (Brazilian st ...

in northern

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

, on the border between the municipalities

Salvaterra Salvaterra is a common toponym in the Galician and Portuguese languages. It may refer to: * Salvaterra, Pará, a municipality in Pará, Brazil * Monfortinho e Salvaterra do Extremo, a civil parish in Idanha-a-Nova, Portugal * Salvaterra de Magos ...

and

Cachoeira do Arari Cachoeira do Arari is a Brazilian municipality located in the state of Pará. Its population as of 2020 is estimated to be 24,064 people. The area of the municipality is 3,102.080 km². The city belongs to the mesoregion Marajó and to the mi ...

. During the dry season, the waters of Lake Guajará are coloured bright green due to an abundance of

phytoplankton Phytoplankton () are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater Aquatic ecosystem, ecosystems. The name comes from the Greek language, Greek words (), meaning 'plant', and (), mea ...

and

algae Algae ( , ; : alga ) is an informal term for any organisms of a large and diverse group of photosynthesis, photosynthetic organisms that are not plants, and includes species from multiple distinct clades. Such organisms range from unicellular ...

. There is an elevated mound called a ''

teso Teso or TESO may refer to: Places * Têso, a Portuguese hamlet * Teso District, Kenya, a defunct administrative district in the former Western Province of Kenya * Teso District, Uganda, a district in Uganda now known as Teso sub-region Language ...

'' next to the lake, which was visited by William Stebbins Barnard in 1870. Many local legends surround the lake, some of which were eternalised in the novel ''Marajó'' by Dalcídio Jurandir. They talk about an underground connection between Lake Guajará and the

Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...

through the Paracauari River.

References

{{DEFAULTSORT:Guajara Lakes of Brazil Landforms of Pará