I use to take my Puggle to Doggie Day Care weekly before we got Zahra our Basenji. It gets a little expensive when you add another dog to the family! LOL! But they both go occasionally.
I haved looked at probably 5 or so in our area but I have to be a lot picker now that I have a Basenji. The things that I looked for is:
1.) How many staff members are there and where are they? Are they interacting with the dogs and watching them or are they just sitting on a chair?
2.) Cleanliness. I walked into one place here earlier than I said I would be by, there was a small room when you walked in where they kept the smaller dogs while the bigger dogs where outside playing and it was covered in dog pee and poo. The dogs were actually running through it. The outside area didn't impress me at all.
3.) Now that we have a Basenji I am concerned about fences at a day care. I looked at one that was close to a corner of a very busy intersection here. The fenced area was not very big and it was a chained link fence that I could invision Zahra climbing in two seconds flat. The inside was not bad but I could not get the thought of a very busy intersection and my Basenji running around in it.
4.) There is a place here that has a large indoor place for the dogs and it is very nice because it is air conditioned and heated.
The place that I really like to take my dogs to is a Farm that is incredible. They are very dedicated to dogs. There are a few horse pastures that have proper fencing around them that are dedicated to the dogs, they are seperated by size and each area is supervised. They interact with the dogs and they get to run all day except for a couple times a day when they let them take naps inside.
They also offer a pet hotel which is incredible too. I feel good about leaving my dogs there and bring home exhausted animals when I do. I know that you are in California but here is the link to the place that I like so that you can see it
www.hollyridgemanor.com
Hope this helps
Jenn