Arriving by ship 11 hours. Suggestions
Not too sure I understand your time available. The standard tourist sights when I was there. Winsron Churchills fishing viallge (very scenic, not much else there) up the mountain to the Church at the top; sled ride down over cobbled streeets; wine shopping in town. Would have liked to spend more time wandering through the plantations cut into the sides of the hills, but if you are there by ship, you really have less time than it seems; time to disembark and find a taxi; got to be back in time to embark