One can infer from the passage that ……………

For an exciting holiday destination, few cities can compare to New York. From fashionable Fifth Avenue to the run-down and frightening ghettos of the Bronx, New York is a city of spectacular contrasts. However alarming it may seem, it is worthwhile wandering the streets on your own to get a feeling for the characteristic areas of the city. Of course it is advisable to use your common sense. You should be cautious when approached by strangers, and always keep in mind that violence is prevalent and that acting unafraid is the best protection against attack. Keeping this in mind, you can be assured of having a marvellous time.