Opatija - Comprehensive guide to one of the first tourism centers on the Adriatic. History, sights, culture, gastronomy, excursions and events. - http://www.opatija-tourism.hr/Home.aspx?PageID=1&gohome=true
Opatija.net - City guide for tourist with information about events, sights, accommodation, restaurants, bars and photo gallery. - http://www.opatija.net