Is there parking available at either the start or end of the trail?

Parking is limited. Too many hiker and not enough parking space. But to answer your question yes.

Yes

Parking is extremely limited be prepared to wait or park across the street. If you do park across the street be prepared to walk a little extra to get to the cross walk or cross a busy street, which I don't recommend. Attention! City planners please place a cross walk from the baseball field parking lot to Arroyo pescadore trail, do not wait for someone to get killed.