For the last three year during the summer there has been a ferry service from Ardrossan to Campbeltown. This service is being run on a trial basis and is due to be reviewed this year. This is a lovely crossing that skirts the southern end of the Isle of Arran. If you are lucky it might also be doing a cruise and then it will take a longer route around the north of the Isle of Arran and then down the East coast of the Kintyre peninsular.
Campbeltown is the main town on the Kintyre peninsular which has an airport as well as a ferry terminal. It does not seem to be spoilt by tourism but there again needs to promote the good things about the town like the Distillery, Heritage Centre and Kintyre Way.