I've never seen any snakes, but always be careful
I've been to the park several times and no snakes. I have only been on the path once, no snake but as for anything be careful as much as possible.
You should always be careful
There are snakes throughout San Diego county, and most natural spaces in California. You really only need to worry about the venomous ones like rattlesnakes.
There are snakes in most parks, always be careful
There can be. But not often.
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