Ilha Grande is an island in the Brazilian state of Rio de Janeiro ringed by beaches, covered by Atlantic forest and crossed by winding trails. On its southeastern shore, the long, palm-lined stretch of Lopes Mendes Beach is known for its strong surf. Lagoa Azul, in the island’s north, has sheltered, fish-filled waters. On the northeast coast, the village of Abraão has the 19th-century São Sebastião Church.