How to say "No children please" on your wedding invitation

Please accept our wishes of no children,
so book yourselves a babysitter,
come and have a carefree time!
We are only able to extend our invitation
to children of the immediate wedding party.
We apologise for any inconvenience and hope that
you can still join us to celebrate our special day.
In order to allow all guests, including parents,
a day of relaxation we have chosen for our
wedding day to be an adult only occasion.
We hope this advance notice means you are still able
to share our big day and will enjoy having the day off!
To give all guests the opportunity to let their hair down
we politely request no children.
Regrettably due to number restrictions we will
not be able to accommodate any children. 
Unfortunately, due to space constraints at the venue,
we will not be able to accommodate children,
other than close family and babes-in-arms. 
Regretfully, due to facilities and logistics
we are unable to accommodate children at our event.
We hope you can use this as an opportunity to take a break
and let your hair down instead!