Hello, I am from Cuenca Ecuador. Cuenca is got the highest life standards in the country, besides is a world heritage city.
In Cuenca is a small city, with the advantage that you can find all to do things from a big metropoli.
The water in the city comes straigth form a natural source el Cajas wich is a national park.
Cuenca is the best place to retire and not only I say so, check out his link
http://articles.moneycentral.msn.com/RetirementandWills/RetireInStyle/the-worlds-best-places-to-retire.aspx