The Clachan Inn B&B Accommodation in Drymen. Located in the heart of Drymen, enjoy warm Scottish hospitality in Scotlands oldest registered licensed premises (1734). Our Traditional home cooking should not be missed. Located within the heart of the village of Drymen the Clachan offers 2 Single Rooms. 1 Double Room and 1 Twin room accommodation. Within easy reach of the eastern shores of Loch Lomond.