This is true of ice boats and sand yachts. The others are small ports for small ships, fishing boats and tourism. They were usually cargo ships, pleasure boats, or houseboats. Many marinas are open to smaller boats. The 800 berths port with two marinas hosts boats, including ferries. It is used in sails for high performance racing boats. Participants watch from shore or on touring boats. Several ferry boats and routes serve Sandusky. It was a development based on African fishing boats. "Flying Fish" along with other patrol boats and tugs. It is analogous to a skeg on boats and ships. Within a decade boats and ships proliferated. Several smaller guns were carried for defense against torpedo boats. Private recreational boats of steel remain uncommon. The navy had 4,800 personnel operating 25 patrol boats and 6 other craft.