Harrow School New Fields
Changing is in the Harrow School Sports Centre which is accessed via Garlands Lane (a 10 minute walk from Harrow-on-the-Hill Underground station).
From the tube, take the rear exit and walk straight towards the main road. Cross at the pedestrian crossing and turn left. Follow the main road up to the next set of traffic lights and turn right onto Peterborough Road. When you reach the traffic island, turn left into Garlands Lane. This will take you down a steep incline to the sports car park. Turn right at the bottom of the hill, the sports centre is on the right hand side.