Map of Baixada Fluminense

• -22.536944-42.9819441 Guapimirim
• -22.652778-43.0408332 Magé
• -22.785833-43.3119443 Duque de Caxias
• -22.803889-43.3719444 São João de Meriti
• -22.763889-43.3988895 Belford Roxo
• -22.807778-43.4138896 Nilópolis
• -22.781944-43.4288897 Mesquita
• -22.758889-43.4508338 Nova Iguaçu
• -22.715833-43.5559 Queimados
• -22.642778-43.65277810 Japeri
• -22.610833-43.70888911 Paracambi
• -22.743889-43.70777812 Seropédica
• -22.851944-43.77513 Itaguaí

• -22.72-42.9941 Área de Proteção Ambiental de Guapimirim (One of the main Environmental Protection Areas in the state of Rio de Janeiro, in the municipality of Guapimirim)
• -22.713333-43.1669442 Guia de Pacobaíba (District where the first train station of Brazil is located, in the municipality of Magé)
• -22.545-43.3853 Reserva Biológica do Tinguá (A large biological reserve in the north of Nova Iguaçu)
• -22.812958-43.5207894 Área de Proteção Ambiental de Gericinó-Mendanha (Environmental Protection Area located between Baixada Fluminense and the municipality of Rio de Janeiro)
• -22.951667-43.8633335 Ilha do Martins and Ilha de Itacuruçá (Two islands in the western limit of Itaguaí, in the Sepetiba Bay - the entire Martins island is inside the territory of Itaguaí, while only a part of the Itacuruçá island belongs to this municipality)

The Baixada Fluminense region is the immediate periphery of Rio de Janeiro. Its urban area sprawled along the suburban train lines and the main highways of the capital and its continuous surrounding areas. This expansion occurred more intensely along axes towards Itaguaí, in the west, Paracambi, in the northwest, and Duque de Caxias, in the north (following later towards Guapimirim, in the northeast).

The region is located in the wide lowlands area to the north of the central municipality and to the south of the mountain range known as Serra do Mar, and includes the municipalities of Guapimirim, Magé, Duque de Caxias, São João de Meriti, Belford Roxo, Nilópolis, Mesquita, Nova Iguaçu, Queimados, Japeri, Paracambi, Seropédica and Itaguaí.

The major airports in the Rio de Janeiro state are Galeão - Antônio Carlos Jobim International Airport (GIG ^IATA).  and Santos Dumont Airport (SDU ^IATA). , and the main long-distance bus station is Rodoviária Novo Rio. , so it is very likely that someone arrives in Rio's metro area through the capital city. In this case, there are lots of urban lines of several means of public transport that links directly the metropolitan core to each one of the 13 municipalities of Baixada Fluminense.

Moreover, there is also the Terminal Rodoviário de Nova Iguaçu. , a major bus station in Baixada Fluminense, and, depending on the place a visitor is coming from, he/she can arrive directly in this sub-region of the metropolitan area of Rio through it.

In Baixada Fluminense, the main urban mean of transport is the suburban train; the railway branches connect almost all municipalities of the region to Central do Brasil, in the downtown area of the capital, and have stations in many neighborhoods of Baixada - they can therefore be used for transportation within this part of the metropolitan area of Rio. Urban intercity bus and van lines departing from the thirteen municipalities of Baixada Fluminense also connect Baixada to the Central Zone of the municipality of Rio, as well as to several neighborhoods in the North and West zones of the capital. As for circulation within Baixada Fluminense, there are urban intercity bus lines connecting all municipalities in Baixada to each other, in addition to municipal lines of buses and vans.

The Rio metro area still keeps more than 30% of its green territory conserved. Although a large part of this green area is located in the municipalities of Rio (the state capital city), Niterói, São Gonçalo, Itaboraí, Maricá, Tanguá, Rio Bonito and Cachoeiras de Macacu (in Leste Metropolitano), nearly a third of it is in Baixada Fluminense.

The fact that a substantial part of the preserved green area of the Metropolitan Region of Rio de Janeiro is distributed across the majority of the 13 municipalities of Baixada Fluminense shows the tourist potential of this part of Greater Rio in the ecological segment. Tourists can schedule and take guided tours in several of these protected areas. Two of the main protected green areas in Baixada Fluminense are the Tinguá Biological Reserve (Reserva Biológica do Tinguá), whose largest part is in the municipality of Nova Iguaçu, and the Guapimirim Environmental Protection Area (Área de Proteção Ambiental de Guapimirim), at the shoreline of Guanabara Bay.