The Overseas Passenger Terminal (OPT), known officially as the Sydney Cove Passenger Terminal, is a public passenger terminal servicing cruise ships and ocean liners located in Circular Quay, Sydney, Australia. Whilst commercial shipping operations on and around the site date from 1792, the current primary structure and waterfront promenade date from 1958, with subsequent on-going alterations and land reclamation throughout the latter part of the 20th century. The current design retains the black steel portal frame trusses of the original 1958 structure, with major additions completed in 1988 in the Post-War International Style through the collaboration of Sydney architects Lawrence Nield and Peter Tonkin.