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Visa requirements vary by nationality. Many countries (US, UK, EU) can visit visa-free for up to 90 days. Check with the Brazilian consulate.

Brazilian Real (BRL). Credit cards are widely accepted, but carry some cash for small purchases.

Not widely. Portuguese is the official language. Learn basic phrases or use a translation app.

From Guarulhos (GRU), take a bus to Tatuapé metro then line 3 to line 4. From Congonhas (CGH), take a taxi or Uber (20-30 min).

Yes, with caution. Stick to busy areas, avoid walking alone late at night, and keep valuables secure.

A famous biomedical research center with a museum, snake exhibit, and park. Open Tue-Sun, entry ~$5.

Yes, especially around USP and Rua Cardeal Arcoverde. Try traditional Brazilian dishes at affordable prices.

Tap water is treated but may cause stomach issues for visitors. Bottled water is cheap and recommended.