Grand Cayman is hot; the average high hovers in the upper 80s and at night it only drops about ten degrees. Even the water temperature is around 80° Fahrenheit all year. So expect to be parched after a day of sightseeing. The perfect solution? Sip a cold beer or a tropical cocktail on the second-story balcony of Breezes by the Bay or other neighboring taverns. From this vantage point, you can see when your cruise ship is loading the last tender.