
Hotel Milenij offers a stunning seaside escape where the salty sea breeze mingles with breathtaking views. Positioned adjacent to the beautiful Park and the Church of St. Jakov, the hotel is perfectly situated near the Lungomare promenade and the main beach, Slatina.
The Lungomare promenade, a historical walkway built in 1911, stretches from Volosko to Lovran, providing picturesque coastal views. Just below the hotel, the 19th-century Portić, Opatija’s oldest port, has long been the launch point for traditional excursion boats.
Originally built as a villa in 1836, the southern part of the hotel evolved into Caffé Principe Umberto in 1898, named after Italy’s Prince Umberto. The Viennese architect Carl Seidl transformed it into the Hotel Milenij in 1910. The restaurant, with its frescoes by Karl Ludwig Hassman, captures the essence of Greek mythology, adding a unique historical touch.
ACCOLADES:
2023 received 2 caps from Gault& Millau









Restaurant Argonauti, once a grand ballroom adorned with frescoes by Viennese painter Karl Ludwig Hassman in 1924, offers a culinary journey inspired by Greek mythology. Indulge in gourmet meals crafted from the freshest local ingredients and specialties, including daily catches of fish and shrimp from Kvarner Bay. Our head chef’s signature dishes feature Istrian white truffles with homemade pasta and Boškarin, the renowned Istrian beef. Experience exceptional Croatian cuisine in a truly unique setting.
Milenij Spa, a pioneering wellness centre, takes inspiration from the Empress Sisi, known for her dedication to personal wellness and beauty. Reflecting her life philosophy, the spa is designed to foster psychophysical balance and inner tranquility. Enjoy a Turkish and Finnish sauna, warm reclining benches, and an ice fountain, alongside a swimming pool and salt bath. Indulge in revitalising massages and relax in the serene area with views of St. Jakob Park. Pure bliss.
Hotel Milenij stands out as a top choice for business and conference needs, meeting the highest standards for your next event. With two versatile conference halls and the picturesque Milenij Terrace, we offer an exceptional setting for meetings, seminars, and corporate events. Whether hosting a large conference or an intimate business gathering, enjoy a seamless blend of sophisticated facilities and stunning views, ensuring a productive and memorable experience.