Is there a lot of crime in Costa Rica?

Petty theft is a more common problem, though this is usually an opportunistic crime. Using a small amount of common sense can go a long way. 

To minimize the risk of becoming a victim of a crime, do not do any of the following:

• leave valuables anywhere but on your person or in your room safe
• wear flashy jewelry or walk around by yourself with expensive cameras
• flash large amounts of cash in any situation
• become overly intoxicated with people you do not know
• walk on the beach at night
• walk through San Jose at night
• carry a copy of your passport with you, leaving the original in your room or hotel safe
• hitchhike or take rides from strangers
• If you rent a car; always lock the doors, do not leave valuables in your car, park in secure areas with an attendant