Toro Canyon Park

This park is a bit of a drive, but a fun park for toddlers. There is a small play structure with one slide and a climbing space as well as swings. It is located in Carpinteria off the Padero Exit via Via Real. Google map

Pros
This is great for the smallest park goers!
There are bathrooms.
There is a playground for bigger kids according to this.

Cons
The toddler structure would not be interesting for bigger kids for long.
It is off the beaten path (even for Carp/Summerland people). 

Toddler Play Structure

Toddler Play Structure (Back)

Toddler and Regular swings