Where are cara cara oranges grown?

Excuse me, could you possibly enlighten me on the geographical location where the exotic cara cara oranges are cultivated? I'm genuinely intrigued to learn about the specific regions that nurture these vibrant, ruby-hued citrus fruits. Are they primarily grown in tropical climates, or perhaps in regions with a unique combination of soil and sunlight that contributes to their distinctive hue and flavor? I'd be grateful for any insights you may have on this matter.