Hi there  
 
Nice to welcome you to the latex forum. Sorry I don't have the answer to your question as I love in Scotland but perhaps some of the other members may know or have been there on holiday recently.
 
As you know the best thing to do is always to ask when you are in any restaurant as things change constantly and I know of one place we used to eat when I went back for a birthday meal for a family member I couldnt get anything to eat as they were using latex gloves so I am afraid its just best to ask on the actual day.
 
However I do hope some members may be able to answer your question and hope you have a lovely holiday in cornwall/devon. It is many years since I have been down to cornwall but it is a beautiful area and I am sure you will have a lovely time.
 
Take care
Teddy