Introduction
Ilha Grande is the near-miraculous survival of wilderness close to a major city. The island — 190 square kilometres of Atlantic Forest-covered mountains rising directly from the Atlantic Ocean — lies just 150 km southwest of Rio de Janeiro. For most of the 20th century it served as a leper colony and then a high-security prison, both uses that paradoxically preserved its natural environment by keeping development away. The prison closed in 1994 and the island was designated an Environmental Protection Area. Today, 90% of the island is protected forest, there are no cars, and 102 beaches of varying accessibility surround its mountainous perimeter.
The most famous beach — and the one most visitors head to — is Lopes Mendes, a 3-kilometre stretch of white sand and Atlantic Ocean surf on the island’s southeastern coast, accessible only by a 1.5-hour boat ride from the main village (Abraão) or a 2.5-hour hike through the Atlantic Forest. It is consistently cited as one of the most beautiful beaches in South America, and the hike to reach it — through lush forest, with exotic birds audible on all sides — is an experience in itself.
But Lopes Mendes is just one of 102 beaches. Each has a different character: Lagoa Azul (Blue Lagoon) has exceptional snorkelling in a protected cove; Praia de Palmas is calm and family-friendly; Praia do Abraão is the functional main beach of the village; the Saco do Céu lagoon has the most spectacular cliff scenery. Exploring the island by combining hiking trails and boat taxis is the fundamental Ilha Grande activity.
The absence of cars — all movement is on foot, by bicycle, or by boat — gives Ilha Grande a profound quietude that is rare in Brazil and extraordinary given its proximity to Rio.
Getting to the Beach
Getting to Ilha Grande
From Rio de Janeiro: Take a bus from Rio’s Rodoviária Novo Rio to Angra dos Reis (approximately 2.5 hours) or Mangaratiba (approximately 2 hours). From each, boat services run to Ilha Grande (approximately 1–1.5 hours). The total journey from Rio is 4–5 hours.
Alternatively: Organised transfers from Rio by private van to the ferry, combining for 3–4 hours total.
From Rio de Janeiro international airport (GIG or SDU): Both Rio airports serve the international connections. GIG (Galeão) is Brazil’s main international hub, with connections from throughout Europe, North America, and globally.
When to Come
Brazil’s southeast coast has distinct seasons:
- November to March: Summer. Hot (28–35°C), humid, the most rainfall. This is Carnival season (February) and the peak of domestic Brazilian tourism — very busy, especially at the beaches. The warmest sea temperatures (24–26°C). Book accommodation far in advance.
- April to June: Excellent. Quieter, slightly cooler (22–28°C), the forest is lush after the summer rains, and the beaches are far less crowded.
- July and August: Brazilian winter — a second domestic peak (school holidays). Drier and cooler (20–25°C), good hiking conditions. Busy again.
- September and October: Quieter and pleasant, warming up toward summer.
Sleeping Nearby
All accommodation is in the village of Abraão (no hotels elsewhere on the island):
- Sagu Mini Resort: A comfortable option with pool and good facilities.
- Various pousadas (guesthouses): The standard accommodation type — family-run, comfortable, varying quality and price. Many are very good.
- Budget options: Hostels and very basic rooms for backpackers are available.
The island fills completely at Carnival and New Year’s Eve — book months in advance for these dates.
Experiences
Lopes Mendes Beach (Hike or Boat)
The 3-kilometre walk from Abraão through the Atlantic Forest to the Dois Rios village, and then the forest trail to Lopes Mendes, is the island’s signature experience. The beach at the end — open Atlantic surf, white sand, no development — is extraordinary. Boats from Abraão reach the beach in 45 minutes from the north side. Combine both (hike one way, boat the other) for the ideal experience.
Lagoa Azul Snorkelling
The Blue Lagoon, on the island’s northwestern coast, is accessible by boat. The sheltered lagoon has crystal-clear water with excellent snorkelling — sea turtles, tropical fish, and coral formations in beautifully clear Atlantic water. One of the finest snorkelling spots on the Brazilian coast.
Atlantic Forest Trails
The entire island is threaded with hiking trails through pristine Atlantic Forest — one of the world’s most biodiverse and most threatened biomes. Birds, butterflies, howler monkeys, and extraordinary flora make the trails rewarding. The trail to the Pico do Papagaio (979 m, the highest point) gives panoramic views of the entire island and the mainland coast.
Waterfall Swims
Several freshwater waterfalls in the island’s forest interior can be combined with hiking. The Cachoeira da Feiticeira (Witch Falls) and the Cachoeiras da Parnaioca are the most visited.
FAQ
Is Ilha Grande safe? Generally yes — the island has a significantly lower crime rate than mainland Brazilian beach destinations. The small, walkable village and the island community’s tourism-dependent economy create a safer environment. Normal precautions apply.
Can you get to Ilha Grande on a day trip from Rio? Technically possible but not recommended — the travel time (4–5 hours each way) leaves very little beach time. A minimum of 2–3 nights allows proper exploration.
How many beaches can you visit in a week? A week allows thorough exploration — Lopes Mendes, Lagoa Azul, Saco do Céu, Praia de Palmas, Praia de Dois Rios, and others. The combination of hiking and boat taxis makes it possible to visit 2–3 beaches per day.
What wildlife can you see on Ilha Grande? The Atlantic Forest covering the island is a significant biodiversity reserve. The forest hosts howler monkeys, whose calls carry clearly over the trail on still mornings, as well as smaller brown capuchin monkeys, sloths (look up into the trees along the Lopes Mendes trail), armadillos, and a remarkable diversity of birds — including toucans, parrots, hummingbirds, and the brilliantly coloured tanagers that crowd fruiting trees at forest edges. The marine environment is equally rich: green sea turtles feed in the bays around the island, humpback whales pass through the offshore waters between July and November on their annual Brazilian migration, and the Lagoa Azul and other protected coves support excellent populations of reef fish and the occasional octopus. Bioluminescence in the shallow bays on dark nights — caused by dinoflagellates in the water — can be spectacular, and visible to swimmers moving slowly through the shallows after sunset.
Can you combine Ilha Grande with Rio de Janeiro? Absolutely — and this is the standard itinerary. Ilha Grande makes an ideal add-on to a Rio trip, typically placed before or after the city. Two to three nights on the island balances well with 3–4 days in Rio. The logistics are straightforward: bus from Rio’s Novo Rio terminal to Angra dos Reis or Mangaratiba, then the ferry to Abraão. The contrast between the city’s intensity and the island’s car-free quietude makes the combination particularly rewarding.