Guanabara Bay

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Guanabara Bay

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Guanabara Bay, Natural bay in Rio de Janeiro, Brazil

Guanabara Bay extends 31 kilometers in length and 28 kilometers in width, featuring over 130 islands across its 412 square kilometer surface.

Portuguese explorers Gaspar de Lemos and Gonçalo Coelho discovered the bay on January 1, 1502, leading to the establishment of Rio de Janeiro.

The name derives from Tupi language terms referring to a bay similar to the sea, reflecting the indigenous heritage of the region.

The Rio-Niterói Bridge spans the bay, connecting the cities of Rio de Janeiro and Niterói while facilitating daily transportation for thousands of people.

The bay entrance features prominent geographical markers including Papagaio Peak, Santa Cruz fortress, Sugar Loaf Mountain, and São João fortress.

Location: Rio de Janeiro

Part of: South Atlantic Ocean

GPS coordinates: -22.79043,-43.15567

Latest update: November 18, 2025 10:37

What to do in Rio de Janeiro: must-visit sites, monuments, and beaches in Brazil

Rio de Janeiro is more than a city; it is a living backdrop. Between mountains and sea, the Brazilian metropolis showcases its most famous landscapes: Christ the Redeemer overlooking Guanabara Bay, Sugarloaf shining in the sun, Ipanema and Copacabana beaches where music and sand never sleep. But Rio is not just postcards. In the streets of Santa Teresa, colorful azulejos climb the Selarón stairs, museums reinvent the modern city, parks hide tropical forests, and lookouts reveal stunning panoramas. From samba to nature, from colonial heritage to futuristic architecture, each neighborhood tells a different face of Rio. Here are the must-visit places to experience its energy, beauty, and the unique joie de vivre.

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