Ferry operators carry passengers, vehicles and freight across rivers, estuaries, lakes and stretches of sea. Services may connect islands with the mainland, link nearby shores or form part of a longer coastal or international route. Some crossings are regular public transport, while others operate seasonally or cater mainly for visitors. Vessels vary from small passenger boats to larger ships with vehicle decks and facilities for longer journeys. Customers can typically book foot-passenger travel, and on some routes take cars, motorcycles, bicycles, coaches or commercial vehicles. Freight services may carry goods, including vehicles and trailers, subject to the vessel and route. Operators usually provide information about timetables, fares, booking, check-in, luggage and travel requirements. On board, facilities can include seating, toilets, refreshments and accessible areas, depending on the vessel.