Nova Iguaçu, a city on the outskirts of Rio de Janeiro, has been known to deal with quite a high crime rate. It is advised to take all standard travel precautions, such as avoiding traveling at night, not displaying valuables in public, and staying aware of your surroundings at all times. Even though many residents are extremely warm and welcoming, and there are certainly parts of Nova Iguaçu that are safer than others, it's best to remain savvy and cautious due to reported instances of violent crime.