From their website:
Come to London's largest skatepark at Barking Sporthouse and gym. designed with the riders in mind. Each with dedicated sections, you'll be able to try out a range of tricks, from street to bowl.
Skate, BMX, scooter and inline, whatever your wheels, try out our indoor park. Suitable for all experience levels.
Prices:
Adult: £8.50
Child: £6.50
Please note sessions are two hours.