Carribean Women Have Great Skin What Is The Secret

I recently got back from a trip to Trinidad and Tobago in the Carribean, it was a lot of fun.  Swimming, diving watching the musicians play the stainless steel drums, there is nothing quite like that sound.

I started to notice everywhere I looked that people there had amazing skin! What is the secret of all the healthy skin in the Caribbean Islands? Is it the skin pigment? Is it the humidity? I am still trying to figure this out, if anyone knows can you please comment?