This page showcases Britain family vacation ideas including things to do with kids, family-frienldy hotels and short-stay apartments with vacation offers. Travel with BritRail all the way to Cardiff or attend world-class theatre in London; find King Arthur’s birthplace in Cornwall and who can forget Harry Potter? Best places for family fun include Sterling Castle or Edinburgh Castle, and Stonehenge. Best family vacation deal - an Oyster Card. Narrow your search to London, England, or Scotland. Back to Europe family vacation ideas.