Plizio Visual Lab

Bananal Island

Plizio editorial teamUpdated: Jun 2026Data Sources

Island

Weather…

Bananal Island is located in the Brazilian state of Tocantins and is recognized as the world's largest fluvial island, covering an area of approximately 19,162 square kilometers. The island is formed by the bifurcation of the Araguaia River into two branches, the main Araguaia and the Javaés River, which rejoin further north. Geographically, it sits in a transition zone between the Amazon rainforest and the Cerrado savanna, resulting in exceptional biological diversity. A significant portion of the island is protected by the Araguaia National Park, established in 1959 to preserve the local flora and fauna. Beyond its ecological importance, the island hosts several indigenous territories where the Karajá and Javaé peoples live in legally protected areas. During the rainy season, large parts of the island are flooded, a process that is vital for the local ecosystem and acts as a natural water filter. Access to the island is strictly regulated to protect both the fragile environments and the cultural integrity of the indigenous communities.

Best time to visit & climate

The most pleasant time to visit is May–Jul.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	27	26	26	26	27	27	28	30	32	30	28	27
Rain mm	225	211	215	128	29	5	3	2	24	131	188	214

📋 Practical info

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Getting there

Access is genuinely challenging and usually requires a chartered boat from towns like São Félix do Araguaia. Official permission from the environmental agency or local communities is often required beforehand.

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Best season

Visiting is practically only realistically possible during the completely dry season, roughly from May to October. During the wet season, large portions of the massive island are completely submerged by water.

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Terrain & paths

The island is a vast, expansive flat area of transitional wetlands situated between the Amazon and Cerrado biomes. Trails are rudimentary and often extremely muddy, making overland travel very difficult.

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What to bring

Essential survival gear includes comprehensive camping equipment, powerful insect repellent, and sufficient personal food and water supplies, as reliable tourist infrastructure is almost entirely non-existent.

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Parking

Vehicles must absolutely be securely left on the mainland in the departure towns prior to the boat trip. There are absolutely no roads, bridges, or facilities for regular passenger cars on the island itself at any time.

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Safety

The extreme remoteness implies that any emergency services are extremely far away. Visitors must absolutely travel with experienced, reliable local guides and be fully prepared for sudden potential wildlife encounters.

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Time needed

Tough and demanding expeditions typically last between three to five days. This allows enough reasonable time for handling the complex logistics of entering the protected areas and observing the unique local wildlife.

Geography

Coordinates

-11.33000, -50.16000

Facts

The island covers an area of about 19,162 square kilometers.
It is recognized as the largest fluvial island in the world.
Araguaia National Park was established on December 31, 1959.
The Araguaia and Javaés rivers completely encircle the island.
Over 360 species of birds have been documented on the island.
The Karajá and Javaé indigenous peoples inhabit the island.

Route planner — Car & Motorhome

Where do you start? We build the route here, with stops and country notes along the way.

Start Destination Via (optional)

Overnight stops

Vehicle

Only stops with (optional): 💧 Water ♻️ Disposal 🔌 Power 🚻 Toilets 🚿 Shower

Sights nearby

Frequently asked questions

Where is Ilha do Bananal located?

It is located in the state of Tocantins, between the Araguaia and Javaés rivers. It is the world's largest river island.

Can you visit the island?

Parts are accessible as a national park, while others are indigenous territories. The latter require a permit from FUNAI.

What animals can be seen there?

You can spot jaguars, giant otters, turtles, and over 600 bird species. It is an ecotourism paradise.

When is the best time to visit?

The dry season from June to September is best. This is when beautiful river beaches emerge for swimming.

What should you bring?

Insect repellent, sunscreen, and light clothing are essential. The area is very remote and hot.

Bananal Island: where is it located?

Bananal Island is located in Brazil.

Bananal Island: when is the best time to visit?

The most pleasant time to visit is May, Jul.

Bananal Island: why is it worth visiting?

Bananal Island is located in the Brazilian state of Tocantins and is recognized as the world's largest fluvial island, covering an area of approximately 19,162 square kilometers.

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