1. Plitvice Lakes
Every tour through Croatia includes its most beautiful natural attraction - Plitvice Lakes (abbreviated Plitvice). Located in the heart of Croatia, Plitvice is a destination of all Croatian tourist buses and individuals who explore this beautiful country.
If you plan to visit Plitvice, I recommend reserving at least one day for it. The best option is to arrive there at 8 am when the Park opens (opening time may vary slightly depending on season). My bet is you will not want to leave before closing time. Many individuals or groups book a night accommodation somewhere in or near the Park, so they can enjoy multi-day visit.
The park attractions include beautiful waterfalls (Milinovacki waterfall, Big waterfall, Milka Trnina Cascades etc.), viewport of the lakes and flora and fauna. Proposed tours include electric boat and train rides and walking around the lakes.
Alongside Dubrovnik, Sibenik features the most interesting fortification system in Croatia. These amazing buildings are a historic symbol of the millennial struggle of Sibenik for freedom and defence of own culture.
The most dangerous enemy was Osman Empire which tried to conquer Sibenik a few times but never succeeded. Currently, two fortresses are open for visitors: St. Michael fortress and Barone. They are less than a mile away from each other, and one ticket is valid for visiting both.
The opening ceremony of the third fortress, St. Nicholas, will be early summer 2019.
Zadar sea organ
Zadar has unique architectural phenomena: sea playing music. You can see and hear the music played by sea waves on Zadar Riva.
Located at the south of Croatia, Dubrovnik features the most imposing fortification system in the whole of Europe. Thanks to its fortification (and diplomacy), Dubrovnik retained its freedom for hundreds of years.