All the water is bottled, do not drink from a faucet. The Zona Rosa is full of availability, you will find flyers all over, hell even the phone book advertises local agency providers. All of the hotels that have a presence in the Zona Rosa, including Hilton, Sheraton, **** Carlton, Hyatt, all have tourist guide books with local provider agencies. If you speak Spanish, you can basically ask any lady out that works at any local business. Go to the local Starbucks and hit on the waitresses, they will show you the best places to go and go home with you as well.