There's lots for younger kids to do in the holidays, but most stuff (organised holiday clubs and other stuff I've seen advertised) seems to stop once they get to secondary school age.
We're based in NW England, so not sure if it's just around here or everywhere.
At this age they're not very self-motivated (at least not the ones I know).
AIBU to think that there should be more organised stuff for older kids to do?