4. Public Transportation at Night
Riding a bus through San Juan during the day is much the same as in any city. It is considered to be relatively safe. When the stars come out, however, it is best to avoid taking the bus anywhere in the city other than around the main tourist locations. After dark, shady characters and other undesirables have been known to occupy the local buses, making them one of the foremost areas to avoid. In San Juan, police reports indicate a number of knifings and shootings aboard buses during late night rides to the outskirts of the city.