Most tourists visit the island of Korčula during the summer months when its Adriatic-Mediterranean climate has an average daily high of 72° to 76° Fahrenheit and about a dozen hours of sunlight. So when you set off for a day of sightseeing in the Old Town of Korčula, make sure to bring your bathing suit and a towel. You can enjoy a quick tip in the peaceful waters of Luka Korčulanska Bay or what the locals call Luka Us. Also take time to admire the seasonal mansions that line the coast. Most of them were built during the early 20th century.