St Swithin's it is! The steam railway chugs pleasantly through very nice countryside, all the stations decorated with tubs and troughs of cottage garden flowers and all the staff dressed the old way. It was me birthday treat in 2014, but because I'd been somewhat on the Prosecco the night before I found meself dipping in and out of slumber on the train in a most agreeable fashion, the chuffing of the steam engine having a most soporific effect. I'm sure the missus would love the sheer gentleness! I don't know about the blue plaque, but I'd recommend an hour or two at Porlock Weir if you can make it. A half-hour trot up the good path to the top of Dunkery Beacon, the highest point on Exmoor, is another lovely sojourn.