The event, which closes on April 10, is being held under the auspices of Prime Minister Ivo Sanader and was opened on his behalf by Sea, Tourism and Transport Minister Bozidar Kalmeta.
The fair is the biggest of its kind in Southeast Europe and is significant for Croatia's tourism and economy, the minister said among other things.
The fair is among the five biggest of its kind in Europe and among the 10 biggest in the world.