We have a week in Cornwall next week and the forecast appears to be rain every day except one! 

What recommendations do you have for rainy days in Cornwall please? We are staying on the Roseland peninsula but are happy to travel a bit. 3 DCs aged 6 and 4 and a crawling baby!
Whenever we have been before we have been really lucky with the weather so never had to consider this before. I suppose our luck had to run out at some point!