Looks like you have been lucky with the weather Nick. Bike looks good to. How are you finding it after the Guzzis?
Lots of nice places to visit in D&C: Dartmoor, the South Hams, Plymouth is good - try the Barbican area for pubs (I went to Uni in Plymouth, try and find he Minerva for an authentic pub experience - at least it was umm, nearly 40 years ago). Small villages all along the south coast of Cornwall - watch them super narrow lanes though and a few chain ferries to add a bit of interest. Lizard Point, St Michaels Mount & Lands End. Cape Cornwall about 10 miles east of LE has more of the feel of what you might expect of the end of Britain as LE is now a theme park. Porthcurno & Minack Theatre (although pretty sure it will be shut), Sennen, St Just, St Agnes all nice for a visit. Eden Centre, Garden of Heligan. Oh god there's loads. Best beach in Cornwall is Pednvounder near Treen. Short walk and a rock scramble to a beautiful stretch of sand (at low tide - watch the tide for getting back, you can get cut off).
Strangely we don't seem to have many Bigtrailie members down in the SW that I know of.