So, I have pre-booked tickets for Chessington for the 1st of August as me and DH have a few days off together with DD (nearly 2), and it was much cheaper to book in advance. We have purposefully booked for a weekday to try and avoid some of the queues, although I know it's the school holidays so may not make much difference. Any tips for what's good to do there for a toddler (also I'm 5 months pregnant so just want to do the gentle rides)? Also is food very expensive / is it better to take a picnic? Any general tips / hints?