New York Sports Club - Multiple Locations
At NYSC locations in Dobbs Ferry, Somers, White Plains and New Rochelle, anyone can reserve the club’s indoor pool for birthday parties for children ages 4 and up (even non-members!). Party time can be spent on free play or organized games. A variety of swimming toys and flotation devices are available (noodles,kickboards, vests, etc) and parties last for 2 hours.

Premier Athletic Club - Montrose
2127 Albany Post Road
Premier Athletic Club’s indoor pool is available for pool parties on Friday afternoons and Saturdays. Participants must be 8 years old or older and will be supervised by two party hosts provided by the club. Parents of all the guests will receive a coupon to work out for FREE for the duration of the party and there is the option of adding on lunch after the party at the club’s in-house restaurant, Valerio’s. There are 3 pricing levels depending upon whether the child is a member of the club, the parent is a member or the parent is a non-member.

Club Fit - Briarcliff Manor
584 North State Road
Club Fit Briarcliff offers two water-themed parties. Wet and Wild, for ages 3-12, promises an hour of wacky water games and fun aquatic races, in addition to half hour use of a designated party room and FREE gym guest passes for all of the visiting parents. Choose the Surf and Turf package and party guests ages 6-12 will enjoy 45 minutes in the pool, 45 minutes in the gym AND a half hour in the party room while the parents make use of their FREE guest passes.

Lifetime Fitness - Jefferson Valley
600 Bank Road
Club Fit Jefferson Valley offers the same two packages, with different age restriction. At Jefferson Valley, both packages are available for ages 7-12 only.

YWCA- White Plains
515 North Street
The YWCA in White Plains reserves times for pool parties on Saturday and Sunday afternoons from 4:30 to 6:30 PM. Two party packages are available--a half pool package for up to 25 swimmers or a full pool package for up to 40. Each package includes 1 hour in the pool and 1 hour in the party room, certified lifeguards and fun activities. Guests will have access to both the shallow and deep end of the pool; children who wish to swim in the deep end will be asked to complete a quick swim test at the beginning of the party. Guests who cannot touch the bottom of the 38 inch deep shallow end must accompanied in the water by a parent or caregiver.

JCC Midwestchester - Scarsdale
999 Wilmont Road
The JCC Midwestchester has set aside the 3:45 to 5:45 time slot on Saturday afternoons for pool parties in their year-round indoor pool. Parties accommodate up to 20 children ages 6 to 10 and include supervised aquatic activities and use of the party room. 

Be sure to inquire at each club about exclusive package discounts for members!

Image credit: North Charleston