Chiltern Open Air Museum is open all week for the half-term from Saturday 22nd to Sunday 30th October with a series of family activities.
Find out more at https://coam.org.uk/events/october-half-term/
There is also a special Christmas weekend opening 3rd and 4th December where you can find out a little about how Christmas was celebrated in the past. https://coam.org.uk/events/christmas-event/