The island of Lokrum is only a 10-minute boat ride away from Dubrovnik. Right there is the next "beach" on our list. It's actually a lake! Namely, the small lake Dead Sea is seawater surrounded by land. The water in the lake is clean, warm, but also shallow enough (the lake is 10 meters deep), so families with children often bathe here.If you don't like the idea of swimming in the lake, explore the rest of the island. You may come across colorful locals of Lokrum along the way, peacocks . Be sure to visit the Botanical Garden of the Duke of Habsburg Maximilian, who has brought over 500 species of exotic plants from all over the world on the island of Lokrum.