DD1 is a v active 3 year old and likes getting mucky outdoors more than anything. I think she would enjoy something like guides/ adventure scouts when the time comes. I don't know anything about what is available in Britain (I am an ex Brigini, the Irish version).
Can I ask what the various groups available might be, and what the difference between them is, for example are they linked to the church or armed forces.
I am aware that waitlists are likely to be long, so I am starting to think about it now.