RideSlayer

Hello everyone, Was hoping for some help as me and my friends are planning a little trip down to London/Surrey just to go to Thorpe Park. We are staying for one night and so we will have some small luggage, was just wondering if there is anywhere in the park we could leave this safely as it would be a lot of hassle to carry around and I doubt it would fit in lockers. We could proably fit everyones stuff into 2 small suitcases. Any ideas and how much it will cost? Thanks in advance!