My little boys ask to go to this park every time we visit grandparents in Santa Barbara. The reason is that there is a cement car ramp where they can take their matchbox cars and race them around a little track. They could spend hours taking their cars up and down the parallel tracks of which there are 4.
Tucker's Grove is a great little park with lots of places to have birthday parties or picnics, and it has nice play equipment for little kids. My two preschoolers had a blast. Nothing is too dangerous for them at this park, and it's generally not that crowded.