pghkmh

Calle 57a, bars etc have been addressed a few times but long time ago, may have been pre-Covid. 
Parque Bolivar, hooking up with hustlers/rough street trade, the dangers of the area etc  have been addressed many times in various threads, including by myself in here : 
https://www.gayguides.com/forums/topic/37808-medellin-love-motel-and-escort-angelo-real-25cm/page/2/#comment-339090
 

Yes. This has been discussed extensively here but I can't find the start of the exchange. I have been there personally several times, but there are better options.  The street is Calle 57a between Avenida Oriental and Carrera 47.  The main bars are El Machete and Kanahan's bar. The old restaurant where the boys worked right on the park closed during the pandemic and was non-operational as of this month. 
I don't recommend visiting as this barrio is not particularly safe after dark. Others here have argued against that so do with that what you want. 
Here is a map of the Calle del pecado in Medellin. Happy hunting.