Poreč's waterfront has anchored Istrian maritime trade for two millennia, its harbor sheltering Roman grain ships, Venetian galleys, and Austro-Hungarian steamers in turn. Today the Obala Maršala Tita quay hosts a modest fleet of excursion vessels—wooden gajetas and modern catamarans—that depart daily between April and October, tracing routes along the fractured limestone coast that defines the western Adriatic. The harbor itself remains free to wander; visitors pay only when boarding a scheduled cruise, with departures clustered between morning and late afternoon to match tidal flow and the westerly maestral wind that calms by evening. Poreč boat tours anchor the town's tourism economy as firmly as the Euphrasian Basilica anchors its cultural identity. The Istrian peninsula's jagged shoreline—sculpted by karst erosion into sea caves, pocket beaches, and submerged reefs—is largely inaccessible by road, making coastal cruises the primary means of reaching islets like Sveti Nikola and the sheltered bays north of Vrsar. Operators run circuits that range from two-hour dolphin watches to full-day voyages south to Rovinj or north across the Gulf of Trieste to Venice, with onboard narratives delivered in Croatian, Italian, German, and English to reflect the port's historical polyglot character. Morning departures capitalize on glassy water and the likelihood of spotting bottlenose dolphins feeding near the Lim Channel, a drowned river valley that cuts nine kilometers inland and serves as a nursery for Adriatic marine life. The wooden gajeta—a flat-bottomed Istrian fishing boat with a high prow and lateen sail—remains the region's emblematic vessel, though most now carry auxiliary diesel engines and tiered bench seating. Sunset cruises aboard these traditional craft have become Poreč's signature maritime experience, departing as the afternoon heat breaks and returning as the basilica's sixth-century mosaics catch the last direct light. The Lim Fjord route threads through a limestone canyon whose forested walls rise 100 meters above the waterline, narrowing to 600 meters at its mouth before opening into a basin dotted with mussel farms and oyster tables. Venice-bound catamarans, operating select dates in high season, cross 150 kilometers of open Adriatic in under three hours, offering the unusual prospect of viewing two UNESCO World Heritage Sites—Poreč's basilica and the Venetian lagoon—within a single daylight span.