H/S/C Cat I is the new state-of-the-art high-speed ferry of Magic Sea Ferries that connects Agios Konstantinos and Mantoudi with the Sporades, offering fast, comfortable and affordable transportation to its passengers. CAT I has a carrying capacity of 1,000 passengers in airline type seats and has 4 seat classes (Super economy, Economy, Prime economy, Business) and 200 cars or alternatively 180 cars and 6 buses. The official operational speed is 30kn. The H/S/C Cat I route upgrades the services offered in marine transport, transporting passengers daily from Agios Konstantinos to Skiathos in 2 hours & 20 minutes*, to Skopelos in 3 hours & 30 minutes and to Alonissos in 4 hours & 15 minutes. See detailed itineraries here.