Rossarol 1 is a deep Adriatic wreck off the Istrian coast near Premantura and Ližnjan. The ship was split by a mine strike, leaving a capsized bow and an upright stern separated across the seabed, so the dive reads more like a wreck field than a single compact hull. It is a boat-only, expert-level scuba site with variable visibility and open-sea exposure, so gas planning, trim, and ascent discipline matter. This is a technical wreck dive first, a sightseeing dive second.