Hi S.,
This is self serving since I operate a swim school in Southlake, but have you tried an indoor pool party?
The indoor pool is heated to 90 degrees and the play is active and every child finds something they like to do in the water.
My favorite pool parties are when one parent gets in with each child and adults and children are having fun.
There are lifejackets for everyone so the kids and kick around and play even if they are not great swimmers, yet.
Of course there are two lifeguard and you can ask for one guard to get in to be a play buddy.
Minimum snacks are required and no decorations are needed. I thinks it's the best kind of party...but then again, I love the water.
Whatever you decide, I hope your child has a great birthday party!
J. Emler
Southlake Emler Swim School
817-552-SWIM (7946)
iswimemler.com