Just a heads up, after seeing this on another site I'm on. The National Trust have updated their policy for membership, meaning home educators are now able to benefit from membership at the rate of £33 annually...a huge saving if going to the National Trust sites is something you like doing (car parks near us for non members are £5+ a time, with membership, car parking is free).
On a personal note, if you live in Nottingham, you're so lucky!! We visited Clumber Park when we were on hols, what a treat! It's lovely, and next time we'll allocate more time there.
Restrictions on the membership are that it can only be used during term time and during school hours. Here's the direct link: