Midway RV Park or Vineyard RV Park in Vacaville...

We have stayed at both, neither are "resorts".

I would have to give the edge to Vineyard, depending
where they place you. The newer section is nicer of course
but the older section has much better shade trees.

Shade in Vacaville in the summer is worth considering.

Have a nice trip.
Tinbender

Totally agree withe the shade...TOTALLY.
I was raised in the Williams area.

I lived in Vineyard RV Park for several years back when I was still working. I can tell you from my personal experience that Vineyard RV Park is much easier and better to stay in. Midway RV Park will have low spots during rain and it is not easy to maneuver around. There are not a lot of choices in that area but Vineyard gets my vote.

Depending on the season, Vineyard has grapes growing on an arbor and they let you pick them -- delicious! Many unusual varieties, like Champagne and burgundy and pinot.