Large zoo with a play area. Bring your own coffee ...

Large zoo with a play area. Bring your own coffee (seriously, I don't think they sell it in the zoo). Food is moderately priced considering you're a captive audience but you can bring your own food. The entrance and front of the zoo can get crowded, but it's a nice way to spend a day. Alternatively get a pass and pop in just to see a few animals and then be on your way.