I have used this field many times over the last few years I have lived in Ventura. It’s a large open field with grass and weeds but all and all good for landings and recovery.
It’s best in the early morning up until 11am when the winds come up. Near sunset is is typically calm but not always.
There’s lots of parking at the Aquatic Center which is a city park for swimming, baseball and soccer. No model airplane signs are clearly posted on the ball fields but the open field is fine.
Here is the Google maps link to the site and location: https://goo.gl/maps/59qa5h8mteT2
The field we use is at adjacent the roundabout.