The Seaway Visitors' Center at the Eisenhower Lock provides tourists and ship watchers with an observation deck where they can view commercial vessels and cruise ships from around the world as they transit the lock. Guides are available to provide additional information to tourists. Hundreds of ships from all over the world make thousands of transits through the St. Lawrence Seaway annually. They carry a wide variety of cargoes including grains, iron ore, coal, steel, stone, steel slabs, and project cargoes.