Unleash your inner adrenaline junkie with this 15 hour adventure park experience in interlaken following an in depth training session test your nerve with four hair raising activities walk across a high line suspended more than 66 feet 20 meters in the air feel the thrill of rushing toward the ground on a base jump simulator free fall through the forest like tarzan on a swing rope and whiz along a 492 foot long 150 meter zipline at speeds of up to 31mph 50kph numbers limited to 12