Foraging in Valencia area?

Most of my life I lived in Russia, where autumn is a foraging time. Mushrooms, berries, hazelnuts, stuff like that. But now living in Valencia I wonder: is there anything like that here? Do people go to the forests to forage anything, in autumn or other times of the year? If so, what kind of plants/mushrooms I should look for? In what areas? (I don't have a car) Is it legal? (I wouldn't be surprised if some areas are protected)

I know it might sound weird but I'm genuinely curious, and there's nothing like eating something you found yourself in the wild, if you know what I mean.