The Kvarner guc OP 3871, with its hull length of 4.75 m, width of 1.55 m and draft of 0.30 m, was built in 1945 in Kraljevica by the boatbuilder Tomo Bobuš. The boat was used in the Vinodol Channel for fishing and recreational purposes. Its owner is Ivanka Mladenić from Viškovo, who bought it in Crikvenica. This Kvarner guc is slender because it was built as a rowing boat. Its structural elements (keel, stem and sternpost, apron and inner post, floor timbers, frames, longitudinal stringers, caprail and benches) are made of oak, while the planking is made of spruce. The boat is decked at the bow. It is powered by oar, sail and outboard engine. It has one mast, a lugsail and a jib. The boat was renovated by the boatbuilders Sebastijan Superina and Zoran Petričić as part of the Arca Adriatica Italy-Croatia cross-border cooperation project. During renovation, the keel, a small part of the floor timbers and frames, bilge stringers, outer and inner sheer strakes, the caprail, the benches and the planking were replaced, and the rudder was re-made, the mast was restored, and the boat was equipped with traditional rigging. This guc is an important example of a restored traditional boat that will be used for sailing demonstrations and with which the Lovranska Lantina association of Lovran will present itself at traditional boat festivals and regattas throughout the Kvarner region. Currently, the boat is in use, and in the summer months is moored in the port of Ika.