Oh also to mention I believe on Saturday nights at valley park there is a car meet up. I don’t know if they still do it because they tried closing off all of the parking after a certain time and putting loads of speed bumps and restrictions in but it can get a bit rowdy if you’re going to be there super late. So keep that in mind. If you’re just there early evening/late afternoon it should be fine x
I would avoid central Croydon like the plague but you do have Purley way. There’s a cinema there in valley park, believe it’s a vue. Then you’ve got Bella Italian, Nando’s, pizza express. You’ve also got your normal McDonald’s and Burger King and Wong stop and five guys but guessing you want a sit down restaurant. Or you could go to Bromley, there’s a vue cinema there in Bromley south and it’s got a Nando’s near by. Most of the other restaurants are on the high street though. Hope that helps and both quite close x