Police and other authorities could be seen patrolling the park and there was also a heavy police presence near all of the Olympic venues.
Security was a major concern leading up to the games.
So far, there have been no major incidents.
After more than two weeks of competition, the Olympics will be brought to a close tonight during a Lavish Ceremony in the Olympic Stadium.
Be sure to check out our Olympic Zone where you can meet the athletes, tour the venues, check-out the new sporting events and even get some Team USA workout tips.