Mt Vaca is an unregulated, very sensitive, and complex site. Please arrange for a site intro ahead of time, don’t just show up and expect to get one. Fly here at your own risk, do not fly alone, and seek an intro from an experienced local pilot. There is no official LZ, the bailouts are on private property and there are land owners that do not like pilots. It is customary to drive retrieve for XC pilots before attempting to fly here. You must fly XC, or top land here.
You should have satellite tracking to fly here. InReach is the preferred instrument for this.
Register with the tracking websites.
Southwest, 38.4003, -122.1061