Blue peter badge advice

[Namechangedtoprotect]

My dc (aged 10) have blue peter badges. Which of the free activities should we do over the summer holidays? They are turning up their nose at kew Gardens and Hampton Court Palace. We're in the south.

Hawk Conservancy? Just past Andover so that may be stretching the "south" part. IIRC it's only one free child per adult though.

Tower of London if you haven't been yet.

Thanks, they sound interesting.