Watford Junction is the closest station to the Studio Tour. From there you can get on a shuttle bus to the Studio Tour, which is free of charge - simply present your Studio Tour ticket to access this. The journey takes around 15 minutes.
At the moment all visitors over 11 need to wear a face covering on the shuttle bus unless you’re exempt from wearing one. All visitors are asked to use cashless payment methods.
For more details and bus times please check the Studio Tour’s travel page.