Two videos, made in cooperation with the HTZ, show the eastern region of Slavonia as "Croatia's best kept secret", with emphasis on its wines, cuisine and the cultural and historical heritage, and the central coastal city of Zadar as a destination for outdoor adventures such as hiking in Paklenica National Park or sailing in the Kornati National Park.
The two other videos were made by a Lonely Planet team in the Zagorje and Medjimurje regions in the north of the country, with emphasis on their castles, and in Istria, focusing on truffle hunting.
The material will be shown in Great Britain, Germany, Poland, Sweden, Italy and Austria.
HTZ director Kristjan Stanicic said effective tourism promotion nowadays was unimaginable without cooperation with the world's leading media platforms such as Lonely Planet, which he said logs 13 million visits a month.
Lonely Planet creative director Matt Parish said he was proud the platform could contribute to Croatia's promotion in the world, describing it as a destination, rich in diversity that was made for discovery.
Croatia's northern Adriatic peninsula of Istria has received Lonely Planet's prestigious Best in Europe 2019 award.