Parque Berrio can be reached by the Parque Berrio metro station and is located relatively close to Botero Park. This is a square that can be pretty colorful in regards to the people that socialize here. Plenty of conversations surrounding everything from politics, vice, news of the day can be heard here. Generally it is a good idea to keep any of your belongings within sight, such as wearing your backpack on the front of your body rather than behind as there is a slight risk of pickpocketting here, but only if you make it an easy target. Travel smartly and this should not be a problem. Further to the north are some areas that should be avoided (under the metro train platforms heading towards Prado) unless you know what you are doing, such as seeking out specific herbs or deals on clothing. However similar deals on clothing can be found south of Botero park along 52 but in a somewhat less chaotic environment (don't be alarmed as it can be pretty chaotic along the central market anyways). As well, much of Medellin's central market place can be broken up into distinctive purchasing areas (such as a street for nothing but cellphones, a street for nothing but books, a street for nothing but lottery tickets, etc) and the street just off of Parque Berrio seems to be dedicated to porn. All in all it is a park definitely worth checking out, as while there are some areas to be alert in, for the most part it is pretty safe and not really different than you might encounter in most larger urban areas in the world.