In the school gymnasium. Follow the signs to Entrance B of the sports facilities. Across the playground will be a white door with 'Entrance B' above it. This will be where the children are to be picked up at the end of their session.
Entrance for Gymnasts and Trampolinists is through the fire exit of the Gymnasium. From the door turn right and you'll find the fire exit door in the gap between the buildings. The door will be opened when the classes are ready to start.

Classes running in Warlingham School