A signed Liability is only required when using the high performance zone (under 18 years of age by the legal guardian).
You can also have it signed online or on our tablets, and it is even saved in our system for one year.
Children under the age of 7 are not allowed to jump into our high performance zone, as this carries too high a risk of damage to the spine.
(Attention, the printed liability declaration is only valid for the respective day!)