There are me and my husband plus our 3, soon to be 4, children. Children are 8, 5 and 2 (plus soon to be newborn). My parents have offered to pay for an annual membership for us for somewhere in lieu of birthday presents as we are trying to cut down on the amount of "stuff" that we have.
We are already members of National Trust so that is out. We are near to Birmingham.
What places do you have annual memberships to and how often do you go?