Looking for a pool to swim laps or just to hang out? Did you know that you can use the pools at Stanford with your Courtesy card for free? Check out the pool schedule:
Are you looking for a water fun park, check out the Aqua Adventure Water Park in Fremont (http://goaquaadventure.com/) or Raging Waters San Jose Water Park (http://www.rwsplash.com/). But please note. Most water parks seasons starting mid or late May this year.
I highly recommend the Menlo Swim. Since over three years I went there with my boys. First for water baby class, later advanced water baby and now my older one is now having swim classes by himself.
They also have a baby/kids pool, which just opened for the summer.
Enjoy your swim,