If you like piña coladas, keep reading. (I’ll ask later about getting caught in the rain).  I like them. Quite a bit. I’ve had them all over the Caribbean, from their birthplace in San Juan (yes, I prefer Barrachina to the Caribe Hilton) to just about every beach bar you can think of.  They’re an excellent, classic cocktail. But they also very rarely change.  That’s why I was so surprised when I happened upon the Spice Mill beach bar on Cockleshell Bay in St Kitts.  Spice Mill always been one of the island’s signature watering holes — and it now even has its own rum company, HiBisc...