Heading north from Sannox to Lochranza is The Sandwich Station near the ferry terminal. There are always two vegan options on the menu (in 2019 there were five!) plus they sell damn good soup. The sandwiches here are amazing and served on local bread. If you are visiting Arran, no matter what you eat, go here and get a sandwich. As one of our guests said:
I just had the sandwich of my life.