Efteling.
The ages of the dc are perfect. They will be blown away, the attention to detail is amazing, no fibre glass stuff there it's all properly built.
The best acxmd is Bosrijk... It's in real woods with a beautiful natural lake. There are loads of play areas and stuff for dc to do. Small pool... But cute and does the job.
Durinell is fun but more like a glorified pontins, butlins. As pp said perhaps do that first
So dc arnt disappointed after efteling.
Durinell is near beach and by lovely town.
However we have visited other places when at efteling.
The efteling has many layers to it, it's far prettier, bigger and more relaxing than Disney Paris for instance.
It's just so charming and special. Personally I think every child should visit it just once. It's unique. We had to cancel this year's trip.
Next year though we will be looking to combine it with berkse begen (sp) which is a safari park, with lodges over looking the animals, pools etc, play areas. Also lots of people rave about the '' hansel and gretal pancake '' House... It's over an hours drive but people say it's worth it!
Efteling 1st then next time perhaps combine efteling with elsewhere...