Ask HN: Best Hacker Hideaways

Where in the world (cities, areas) would you move to focus on a project for 3-6 months?

Here are some criteria:

-Inexpensive

-English speaking

-Availability of good food (high quality groceries and good restaurants / local food)

-Natural beauty

-Relatively low crime

-Pretty lax visa requirements (for US citizens). Would be nice to stay longer than 90 days.