Yes they do, and many people have them there but it is very expensive even if you're a member and you dont get much for the price. For the pool party you are stuck with 1hr in the pool and 1 hr in the party room and there are restrictions on food and decorations. I guess those that have the money are okay with spending close to 300 $ for a pool party with 15 guests but not me. In my opinion you are better off having presents cake and ice at your house, or restraunt and paying $8 a child for a day long pass to everything in the place. For 15 kids it would be 120 $.
There are two party rooms right beside the pool area. We have not had a party there but have seen them there and they looked to be able to do close to 20 kids or so. I do not know prices but most of the packages gets you access to different areas of the complex. I would call though for specific access.
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