Yes. Parking is free and all the equipment and festive extras included with your Twilight Tobogganing experience are covered by your booking price.
The only thing every tobogganer needs to bring is a pair of full-fingered gloves, which are compulsory on the slope. If you forget them, gloves are available to buy from Reception.
The only optional extra spend is any additional food or drink you'd like to buy from the Alpine Lounge cafe-bar before or after your session.