So last Sunday I was up in Vallejo, CA checking out the newly transformed Six Flags Discovery Kingdom. (Yes I am still going to Tokyo on Saturday, and yes I was called nuts for driving up there & back a week before that trip) For those of you who're unaware, the park was known as Six Flags Marine World until 2007 when it debuted with a new title, new themeing, and a LOT of refurb, new paint, new looks, and the most amazing thing to find in any Six Flags park - BGM loops!
It was quite a transformation, and Six Flags has done a fine job of upping the quality of experience at this seemingly mutant park that can't really decide if it wants to be Magic Mountain, the San Diego Zoo, or Sea World, so it's got a little bit of all of the above. Combine that with lovely new signage, no trash problems, CMs who act like they give a darn, BGM loops, and a TON of characters walking around from both Looney Tunes and Justice League and you have a decent day at Six Flags that doesn't include stomach churning roller coasters.
I put up lots of pictures over at Theme Park Review's forums, so those interested in pictures can Click Here . Be sure to read the first group of pictures from the bottom up since I accidentally posted them in reverse order.
I will say this for Discovery Kingdom, I'd go back for sure. It may have the Six Flags name, but it certainly doesn't have the lackluster experience we've come to associate with that name.