Camping in Holland with two very active boys

[Kvec1507]

So looks like we are doing something different this year and want to go camping somewhere like Holland.
Can anyone recommend a quiet site with lots to do for active boys aged 8 & 12.
Lots of sporting activities and make a lake and definitely swimming pools.
I don't really like busy places so don't want to do somewhere like duinrell.

Have a look at the RCN parks, this one has a lake

TerSpegelt gets mentioned a lot but I have never been, as does this site which is on my radar.

Koningshof is peaceful yet there’s still plenty to do.