Abstract: The zip line rail system can be connected to a challenge course, a zip line, a zip track system, or any combination thereof. The zip line rail system of the present invention can have two rails that a member slide's two wheels rollably engage with, and the zip line rail system can be configured in any of a variety of directions.

Abstract: The zip line rail system can be connected to a challenge course, a zip line, a zip track system, or any combination thereof. The zip line rail system of the present invention can have two rails that a member slide's two wheels rollably engage with, and the zip line rail system can be configured in any of a variety of directions.

Abstract: A zip track system that is integrally connected to a challenge course so that a user can traverse one portion of the challenge course, and then can slide down the zip track system via a zip track to any other desired location.

Abstract: A lanyard for attaching a user's harness to a moveable member of a challenge course. The lanyard may comprise an upper section, a lower section, and a midsection arranged therebetween. The upper section may comprise an upper outer loop and an upper inner loop arranged within the upper outer loop, which form an opening configured to attach to the moveable member, and one or more structural connections. The lower section may comprise a lower outer loop and a plurality of lower inner loops configured to receive a coupling device for the harness. The plurality of lower inner loops may be sequentially arranged within the lower outer loop and attached to the lower outer loop via double shear connections.

Abstract: The zip line rail system can be connected to a challenge course, a zip line, a zip track system, or any combination thereof. The zip line rail system of the present invention can have two rails that a member slide's two wheels rollably engage with, and the zip line rail system can be configured in any of a variety of directions.