GothamBaby.com

http://www.newyorkswims.com
Swim classes ages 6 months and up. New York Swims is located at West End Avenue (11th Avenue) and 63rd Street, in West End Towers.

www.swimjim.com "We offer group lessons beginning with infants 6 months of age with progressive levels to pre-competitive stages. For kids with special needs or for those students who want some extra attention with a friend or sibling, SwimJim offer Privates and Semi-Privates cultivated to individual needs." Class Locations: The Skyline Hotel, 10th at 50th Street River Terrace, East 72nd street at York Ave. St. Bartholomew's Church, 50th Street and Park Avenue Milbank Center, 118th and 5th

http://www.takemetothewater.com
Baby & me classes for 6mos-2 years. Private and semi-private lessons. Pools are located in various private health clubs on the UWS, UES, Tribeca, Chambers & River, Battery Park City.

http://www.ymcanyc.org/sub.php?p=about&sp=west/ws_main.htm 5 West 63rd St. Fitness, heated pool, all sorts of classes (from pottery to journalism), daycare/pre-school/nursery.

http://www.thesportsclubla.com/Clubs/template.asp?Club=NYReebokSportsClub 160 Columbus Avenue(At 67th Street) 212.362.6800 Nice pool, childcare while you work out, and lots more: "Our Fun N' Fit™ program led by childrens' coaches, offers a variety of athletic activities as well as sports programming and coaching, teen and kid fit programs, dance activities and summer camps. And, Members' children can also enjoy art, music, drama and other enrichment activities as well as computer clinics and birthday parties."

Jewish Community Center in Manhattan http://www.jccmanhattan.org
334 Amsterdam Avenue at West 76th Street
(646) 505-4445
Classes for all ages. Expecting parents, prenatal, new parents classes and moms groups. Beautiful pool, nice warm kiddie pool. (You don't have to be Jewish to join and enjoy their facilities.) Tons of kids' classes, and they have childcare for $8/hr when you want to exercise. Or, for those days you really need to get out of the house, for $5/hour you can hang out with your kids in the babysitting playroom.