About 230 thousand people.
La Serena is a pretty seaside city with old churches and long beaches, sitting where the desert begins to turn green. It is one of Chile's oldest towns.
Climb the tall lighthouse by the beach, visit the many old stone churches, and travel inland to see clear starry skies at an observatory.
The city has dozens of old stone churches, giving its streets a calm, storybook feeling.
The clear skies nearby make this one of the best regions in the world to look at planets and stars.