Troon is a town and sea port in South Ayrshire, situated on the west coast of Ayrshire in Scotland, about eight miles north of Ayr and three mile…Troon is a town and sea port in South Ayrshire, situated on the west coast of Ayrshire in Scotland, about eight miles north of Ayr and three miles northwest of Glasgow Prestwick Airport. Troon has a port with freight services and a yacht marina. Up until January 2016, P&O operated a seasonal ferry service to Larne. In May 2006, a ferry service to Campbeltown was added, although this was withdrawn the following year.