A sports and recreation complex, situated on the north shore of Maltańskie Lake. It is an ideal place of relaxation and leisure. The complex houses 18 sports and recreational swimming pools, thermal water pools, an aqua park with many attractions (eg. a beach, 11 waterslides, 2 rushing ‘wild rivers’ and a pirate ship), 14 relaxation zones and over a dozen kinds of saunas and wellness facilities all year round.

Built on the remains of the old Moorish mosque, the building started out as a Parish Church, ascending in importance, as Archiprestal (1281), Collegiate (1413) and finally becoming a Cathedral in 1510. Building started at the end of the 13th Century. It is of Levantine Gothic Style, with three naves and a gallery, a transept transformed by Pere Compte at the beginning of the 16th Century and side chapels between the buttresses. Of note inside is the ironwork, the Baroque organ, the work of Jacinto Perales and the choir stalls, made by Juan Bautista Borja and Tomás Llorens (1716-1718). The sacristy is home to the relics cabinet and cupboard, the work of José Ganga (1732-1734), holding diverse relics within a carved bust. On the outside, of note in the Tower, built between the late 13th Century and the mid-14th Century, the same as the three main gateways, The Puerta de Cadenas (14th Century), Puerta de Loreto (15th Century) and finally, the Portada de la Anunciación, completed by Juan Inglés in 1558.

DELI Park is an education and recreation park. It hosts a miniature park of the world’s most famous buildings, models of giant insects and prehistoric animals as well as a mini zoo.

With the arrival of Iginio Scarpa, a patrician from Rijeka and building of his summer house Villa Angiolina in 1844, Opatija opened her doors to a whole line of guests and passengers. This is the building that certainly marked the beginning of the tourist epoch in the history of Opatija.