"You just raised an interesting point without knowing. What the high mountain areas and equatorial regions share in common......is high levels of (drum roll please) UV radiation."

If your serious about UV, jus go to the equator an turn left until you spot a mountain.
Climb said mountain and build a heated, quartz roofed, greenhouse at about 13,000', yah
Now yer cookin'.

Aloha,
Weeze