(Casco Viejo and Casco Antiguo are different names for the same place.)
Casco Viejo is an urban area, so it doesn’t have large supermarkets. We have smaller convenience stores as well as deli places, which is a newer trend.
One of the major supermarkets is planning on opening a boutique version of their store in Casco Viejo.
When the people of Casco Viejo want to go grocery shopping, they generally get in their car and go to the closest supermarket, Riba Smith. This particular Riba Smith carries a lot of American and European products. It’s clean, air conditioned, with fresh meat, fresh fish, etc., more like a traditional supermarket. Barring traffic, the Riba Smith supermarket is about a 10-minute drive from Casco Viejo.