On the Canary Islands we have a passion. It is the banana.
Canary Islands are made of volcanic rocks and they are full of minerals. Have you know that bananas are full of minerals, mostly with calcium? And these minerals help the banana to be so sweet. The canarian bananas are sweeter than others because of the soil they are grown from.
Banana was not grown by itself over here but when they started to plant it over here they found how sweet and good it is.
So my suggestion, in case you come here, is to buy a piece of banana, even if it is green because over here we eat it like this as it is very very good already when it is green.