Yeah, the anonymous visiter is right. The screaming of a lady might just be the horribly mean geese that roam that park protecting their little nests.
It's just a place for teenagers from El Dorado and Valencia to go to have sex in the back of their cars at, or to get drunk at.
It's pretty much a family place, and it's surrounded by houses, and people jog their all the time late at night, so... yeah.
Plus I have never heard of this place being haunted, otherwise I'm pretty sure the kids from the schools right by it would be there all the time during the weekends.
One more quick thing about this park... You may see a mist coming from the lake, but keep in mind there are many water filters and small fountains that mist...
Also, there is a small camp fire area by the bathrooms from the Brea entrance side... so weird lights and shadows are seen if you are standing on the other end coming from this fire pit when lit.
