4 year old activities.

Whats there to do in fresno/clovis area with a 4 year old kid?

We are trying to keep him active and sociable. We go to the zoo, Woodward park but other than that can you guys recommend some places to take a 4 year old to stimulate his mind and body?

Also for sports we've done clovis rec center. Which is top tier! Any soccer leagues or Tball leagues that you guys would recommend?