The National Maritime College of Ireland is also located in Cork and is the only college in Ireland in which Nautical Studies and Marine Engineering can be undertaken. CIT also incorporates the Cork School of Music and Crawford College of Art and Design as constituent schools. The Cork College of Commerce is the largest post-Leaving Certificate college in Ireland and is also the biggest provider of Vocational Preparation and Training courses in the country.[citation needed] Other 3rd level institutions include Griffith College Cork, a private institution, and various other colleges.