Passenger transport through the upper Adriatic Sea (namely through the Gulfs of Venice and Trieste), especially during the summer season, is increasing more and more. Reciprocal tourist exchanges between the Italian, Slovenian and Croatian coasts, for fast daily excursions or a daily and fast visit to Venice, are very frequent. The most part of boats used for these connections are monohulls (motorboats), some catamarans and, in the past, hydrofoils.
