Can I sign a waiver in advance? Jen Benedict May 16, 2019 16:49 Updated Follow At this time all waivers must be signed on site with our staff witnessing. Signing a waiver takes about 1 minute to fill out digitally. Related articles Are you insured? Do I need to sign a liability waiver? What should I wear? What’s the minimum age to participate? Can I bring my child or infant? Comments 0 comments Please sign in to leave a comment.