I took a walk through Calle Procuradores on the way home last night. Procuradores is a narrow street on the NW side of the Plaza de Armas in Cusco. There are a lot of small bars and restaurants on Procuradores, but to locals it’s known as the bad part of the Plaza de Armas because it’s the main hangout for the small-time drug dealers who peddle “weed” and cocaine (“Charley”) to the tourists.
Calle Procuradores seen from the Plaza de Armas, Cusco
Calle Procuradores, Cusco
Calle Procuradores looking towards the Plaza de Armas
Unfortunately local authorities don’t do anything to clean up Procuradores. I imagine plenty of kickbacks keep the status quo in place. It’s sad really, that people who come to a beautiful place like Cusco, with all of its attractions, entertainment and nightlife, still feel the need to fry their brains with cocaine to have a good time.
Life in Peru 
It must be the “Little Amsterdam” of Cuzco.
es chistosa esa calle, te ofrecen de todo
Be careful. A friend wanted to buy weed and got scammed twice. First time they actually sold him weed but charged him more with the old “you gave me a bill wich is torn and I get a discount when I change it” trick. So he payed 85s insted of the agreed 70s. Weed was good, quantity was enough but notthing to compare with Bolivian market prices.
Second time he got really scammed good. They sold him paper instead of weed. Apperently the dealer fast changed the envelope bevor handing it to my friend. And they gave him a fals bill in return as change. So he payed 100s for a piece of crumpeld paper with the rest of a roach in it.
Cocaine I do not know as all my friends only drink and smoke occasionaly.
So be carefull what you but and from whom you buy. Better not buy on the street! Buy inside discos, bars or restaurants from the staff. It is quieter and you can take a steady eye on what you are buying.
Other than that Cusco and its sourroundings were great and nowbody got robbed or scammed though prices are very high compared to the rest of Peru and especially when you are coming from Bolivia. Even from Copacabana.