Heritage Open Days, which is running from 11 - 20 September, and is the largest volunteer led festival in the UK. They have found some great events that would be ideal for families who are looking to save money but still have a great time with their kids PLUS every event is free! .

The theme this year (which is optional) is Hidden Nature, and it's an opportunity to explore nature on our doorstep and further afield, and embrace the benefits of being outdoors. This year, for the first time, there are digital events, so audiences can tune into fascinating talks, tours and exhibitions from all over the country. This means that no matter where you are, you can access events and activities.

You can see what's on here https://www.heritageopendays.org.uk/visiting