INA Opatija – Zert Fuel Station

INA's marine fuel station in Opatija's Zert harbor is one of the few spots on this stretch of the Kvarner coast where you can fill up directly from the water, with both distilled and residual marine fuels available dockside. The harbor also has mooring equipment, a 5-ton crane, and card payment accepted — so you can sort out fuel and a quick haul-out in the same stop. Fuel prices hover around €1.46–1.48 per litre depending on grade.