One day
Start in the old town at the Euphrasian Basilica for the golden mosaics and the bell-tower view, then walk the Roman Decumanus and Cardo to the Marafor forum and the Venetian houses and towers. Have an Istrian lunch of truffle pasta and pršut, then take a boat to the Sveti Nikola islet or a laguna beach for an afternoon swim. Return for a Riva stroll and a seafood-and-Malvazija dinner at dusk.